The document discusses preventive maintenance of IT systems. It describes the purpose and benefits of preventive maintenance as reducing downtime and repair costs while extending hardware lifespan. Preventive maintenance includes hardware tasks like cleaning components and software tasks like updating antivirus definitions. The troubleshooting process is outlined as six steps: identifying the problem, establishing the probable cause, testing theories, resolving the issue, verifying the solution, and documenting findings. Common computer problems and their solutions are also reviewed.
This document discusses safe lab procedures and tool use for working on personal computers. It emphasizes establishing a clean, organized workspace with safety guidelines to protect people from injury, equipment from damage, and the environment from contamination. Specific hazards discussed include electrostatic discharge, electromagnetic interference, power fluctuations, and improper disposal of hazardous materials. The document also outlines proper use of hardware tools, software tools, and cleaning materials to safely perform computer repairs and maintenance.
This chapter discusses preventive maintenance and troubleshooting for IT technicians. It explains the benefits of a preventive maintenance program and outlines a process for troubleshooting computer hardware and software problems. The chapter is important because it provides techniques for technicians to maintain computers and quickly identify and resolve issues.
This document discusses preventive maintenance and the troubleshooting process. It explains that regular preventive maintenance through hardware and software checks can reduce problems by catching small issues before they become bigger ones. The troubleshooting process involves 6 steps: identifying the problem, establishing the probable cause, testing theories to find the exact cause, developing a solution plan, verifying the full system works, and documenting findings. Following these steps in order helps solve computer problems logically and efficiently.
This document discusses the components of a personal computer system including the case, power supply, motherboard, CPU, memory, storage, ports, and peripherals. It covers topics like form factors, voltages/currents, cooling systems, and specialized computer configurations. The objectives are to identify PC components, explain considerations for selecting them, and describe configurations for specialized systems.
This chapter discusses advanced troubleshooting techniques and processes. It describes applying a six-step troubleshooting process to issues involving computer components, operating systems, networks, laptops, printers, and security. For each issue type, the chapter outlines the six steps and provides examples of common problems and solutions. The chapter concludes with a summary of describing how to apply the troubleshooting process to advanced problems and presenting advanced diagnostic questions.
It essentials pc hardware and software overviewAhmed Sultan
The document provides an overview of the IT Essentials: PC Hardware and Software course, which teaches students practical knowledge of how computers work and helps prepare them for CompTIA A+ certification. The course is divided into two parts covering fundamentals and advanced topics related to hardware, software, networking, security and troubleshooting. It utilizes virtual learning tools and Cisco Packet Tracer activities to provide hands-on experience for students pursuing careers in IT.
This document discusses safe lab procedures and tool use when working with computer components. It emphasizes the importance of a safe, organized workspace and following proper safety guidelines to protect both users and equipment from injury, damage, and environmental contamination. Specific guidelines are provided for preventing electrostatic discharge, electromagnetic interference, power fluctuations, and properly disposing of hazardous materials. A variety of hardware tools, software tools, and best practices for their proper use are also outlined.
This chapter discusses safe lab procedures and proper tool use for working on personal computers. It identifies important safety guidelines for preventing injuries, protecting equipment from damage, and safeguarding the environment. These include wearing an anti-static wrist strap when handling components, using grounded mats, following electrostatic discharge precautions, and properly disposing of hazardous materials. The chapter also outlines the tools and software used for diagnosing and repairing PC issues, such as hand tools, cleaning supplies, and disk management utilities. Instructors are provided resources to help teach students safe working practices.
This document discusses safe lab procedures and tool use for working on personal computers. It emphasizes establishing a clean, organized workspace with safety guidelines to protect people from injury, equipment from damage, and the environment from contamination. Specific hazards discussed include electrostatic discharge, electromagnetic interference, power fluctuations, and improper disposal of hazardous materials. The document also outlines proper use of hardware tools, software tools, and cleaning materials to safely perform computer repairs and maintenance.
This chapter discusses preventive maintenance and troubleshooting for IT technicians. It explains the benefits of a preventive maintenance program and outlines a process for troubleshooting computer hardware and software problems. The chapter is important because it provides techniques for technicians to maintain computers and quickly identify and resolve issues.
This document discusses preventive maintenance and the troubleshooting process. It explains that regular preventive maintenance through hardware and software checks can reduce problems by catching small issues before they become bigger ones. The troubleshooting process involves 6 steps: identifying the problem, establishing the probable cause, testing theories to find the exact cause, developing a solution plan, verifying the full system works, and documenting findings. Following these steps in order helps solve computer problems logically and efficiently.
This document discusses the components of a personal computer system including the case, power supply, motherboard, CPU, memory, storage, ports, and peripherals. It covers topics like form factors, voltages/currents, cooling systems, and specialized computer configurations. The objectives are to identify PC components, explain considerations for selecting them, and describe configurations for specialized systems.
This chapter discusses advanced troubleshooting techniques and processes. It describes applying a six-step troubleshooting process to issues involving computer components, operating systems, networks, laptops, printers, and security. For each issue type, the chapter outlines the six steps and provides examples of common problems and solutions. The chapter concludes with a summary of describing how to apply the troubleshooting process to advanced problems and presenting advanced diagnostic questions.
It essentials pc hardware and software overviewAhmed Sultan
The document provides an overview of the IT Essentials: PC Hardware and Software course, which teaches students practical knowledge of how computers work and helps prepare them for CompTIA A+ certification. The course is divided into two parts covering fundamentals and advanced topics related to hardware, software, networking, security and troubleshooting. It utilizes virtual learning tools and Cisco Packet Tracer activities to provide hands-on experience for students pursuing careers in IT.
This document discusses safe lab procedures and tool use when working with computer components. It emphasizes the importance of a safe, organized workspace and following proper safety guidelines to protect both users and equipment from injury, damage, and environmental contamination. Specific guidelines are provided for preventing electrostatic discharge, electromagnetic interference, power fluctuations, and properly disposing of hazardous materials. A variety of hardware tools, software tools, and best practices for their proper use are also outlined.
This chapter discusses safe lab procedures and proper tool use for working on personal computers. It identifies important safety guidelines for preventing injuries, protecting equipment from damage, and safeguarding the environment. These include wearing an anti-static wrist strap when handling components, using grounded mats, following electrostatic discharge precautions, and properly disposing of hazardous materials. The chapter also outlines the tools and software used for diagnosing and repairing PC issues, such as hand tools, cleaning supplies, and disk management utilities. Instructors are provided resources to help teach students safe working practices.
The document discusses the steps for assembling and upgrading computer components. It covers how to open the computer case, install the power supply, motherboard, drives, adapter cards, and internal cables. It also discusses booting the computer for the first time, configuring the BIOS, and reasons for upgrading components like the motherboard, CPU, RAM, and storage drives. The document provides detailed instructions and considerations for assembling and upgrading various computer parts.
This document provides an overview of printers, including different types of printers, how to install and configure printers, preventative maintenance, and troubleshooting. It describes inkjet printers, laser printers, thermal printers, and impact printers. It also outlines the steps for installing and configuring printers, setting up printer sharing, performing preventative maintenance, and going through the troubleshooting process. The goal is to help technicians understand printers in order to install, maintain, and troubleshoot any issues that may arise.
This chapter discusses advanced laptops and portable devices. It describes wireless communication methods, repairs, components, and preventative maintenance for laptops. The chapter objectives are to describe wireless technologies, repairs, laptop components, and troubleshooting techniques. Various worksheets and optional labs are provided as learning activities. New terms introduced include technologies like Bluetooth, Wi-Fi, cellular networks as well as components like batteries, RAM, and docking stations. Changes from the previous version include additional details on wireless standards, cellular networks, and the laptop troubleshooting process.
This document provides an overview of operating systems and covers topics such as the characteristics, basic functions, types, installation, and customization of operating systems. It discusses desktop and network operating systems like Windows, Mac OS, and Linux. The document explains how to select an operating system based on customer needs, install and upgrade operating systems, set up user accounts, and navigate the Windows desktop interface. It also covers operating system directories, files, virtualization, and troubleshooting techniques.
This chapter provides an overview of personal computer components for IT instructors. It defines the roles of an IT technician and discusses important industry certifications like CompTIA A+ and EUCIP. The chapter then describes the basic hardware and software that make up a computer system, including external components like cases and power supplies, internal components, and common ports and interfaces. It explains the functions of the central processor, memory, storage devices, and expansion cards.
This document provides an overview of the Cisco IT Essentials 6.0 curriculum. The curriculum is designed to teach students about computer hardware, software, operating systems, networking, security, and troubleshooting. It aims to prepare students for CompTIA A+ certification exams. The course covers topics like assembling and configuring computers, installing operating systems, basic networking, security, and troubleshooting hardware and software issues. It includes hands-on lab activities using computer equipment like PCs, routers, and wireless adapters.
This chapter discusses operating systems, including their purpose, types, installation, and boot process. It describes how operating systems control hardware access, manage files and folders, provide user interfaces, and allow application management. The document compares desktop and network operating systems and provides guidance on determining the proper operating system based on a customer's needs. It also outlines the steps to install, set up, and customize operating systems like Windows XP.
This chapter discusses preventive maintenance and troubleshooting of personal computers. It describes how regular preventive maintenance through checking of hardware and software can reduce problems, downtime and repair costs. The chapter then outlines the steps of the troubleshooting process, which includes gathering information from the customer, verifying obvious issues, trying quick solutions, gathering data from the computer, evaluating the problem and implementing a solution. It emphasizes communicating with the customer and documenting all steps taken.
This document provides an overview of Chapter 6 from the textbook "IT Essentials: PC Hardware and Software v4.0". The chapter covers laptops, portable devices, their components, configurations, mobile phone standards, maintenance, and troubleshooting. It includes objectives, worksheets, activities, and descriptions of laptop components both inside and outside the device as well as on docking stations. Preventative maintenance techniques and a process for troubleshooting issues are also outlined.
The document discusses mobile devices, including hardware components, operating systems, and common features. It describes that mobile devices have non-upgradeable and non-field serviceable hardware. The main mobile operating systems are Android and iOS, which are compared. Common mobile device features like touchscreens, cameras, and GPS are also outlined. The document provides information on configuring network and email connectivity, securing devices with passcodes, and using cloud services for backup and remote management of smart devices.
The document discusses the responsibilities and skills required of IT professionals. It covers the importance of communication skills in troubleshooting, as well as ethics, legal issues, and how to handle difficult customers. It also describes call center environments and the roles of level 1 and 2 technicians. Key points are that technical expertise must be paired with strong communication, and IT professionals must maintain high ethical and professional standards.
This document provides an overview of the IT Essentials: PC Hardware and Software v4.1 course from Cisco Networking Academy. The summary is as follows:
1. IT Essentials v4.1 is a computer hardware and software course that covers PC assembly, maintenance, networking, security and prepares students for A+ certification.
2. The course is divided into two parts - fundamentals and advanced topics. It includes new content on current hardware, Windows Vista/7, networking and security skills.
3. Hands-on labs and new Packet Tracer activities provide an interactive learning experience. Instructors can access training, and students can download the Packet Tracer software.
4
This document discusses computer assembly and upgrading components. It covers installing components like the power supply, motherboard, drives, and cables. BIOS configuration and POST are described. Motherboard upgrades including the CPU, RAM, and BIOS flashing are outlined. Reasons for upgrading storage devices and input/output devices are provided.
IT Essentials (Version 7.0) - ITE Chapter 13 Exam AnswersITExamAnswers.net
This document contains the answers to exam questions for IT Essentials (ITE v6.0 + v7.0) Chapter 13. It discusses topics related to computer security including asymmetric encryption, hashing algorithms, social engineering, DDoS attacks, Windows features for encrypting files and drives, firewall types, malware types, and security best practices. The answers provided explanations for each multiple choice question to help students learn about common computer security threats and mitigation techniques.
Topics covered in this presentation:
What is an Embedded system ?
What are MISRA C rules ?
MISRA C conformance and deviations
Tools for MISRA C conformance
Embedded Security Rules
Open security controller security orchestration for openstackPriyanka Aash
Open Security Controller enables orchestration of multiple security functions in an OpenStack DC. OSC integrates with multiple SDN controllers and Security VNFs to automate protection of DC resources.
(Source: RSA Conference USA 2017)
lesson 3; inspect and test the configured cs and network handoutslorbz
1. The document provides safety tips for inspecting and testing computer systems and networks, including wearing proper protective equipment, disconnecting power sources before opening covers, and reporting any accidents.
2. Common network error messages are described along with potential solutions, such as checking that the network adapter is securely connected, renewing the DHCP lease on the router, and verifying wireless network settings and signal strength.
3. Steps for upgrading computer components like memory, video cards, hard drives, and processors are outlined to improve performance, along with tips for speeding up an existing computer through tasks like defragmenting and cleaning up storage.
Accelerate Ceph performance via SPDK related techniques Ceph Community
This document discusses techniques to accelerate Ceph performance using SPDK-related methods. It introduces DPDK for storage which uses DPDK and UNS technologies to optimize iSCSI front-end targets and provide higher system performance for iSCSI. A middle cache tiering solution is proposed to provide local caching and write logging between applications and Ceph for legacy protocol support, high performance, and high availability. The document also briefly mentions other building block techniques, I/O optimization, data processing acceleration, and ISA-L.
This document summarizes key topics from a lecture on security engineering, including design guidelines for security, design for deployment, and system survivability. The design guidelines encourage basing decisions on an explicit security policy, avoiding single points of failure, and failing securely. Deployment issues like vulnerable defaults and access permissions are addressed. Finally, resilience strategies like resistance, recognition and recovery are discussed to help systems continue operating during attacks.
Unit Drilling has a comprehensive preventative maintenance system to minimize downtime for customers. It includes regular oil sampling, equipment inspections, maintenance logs, alerts for common issues, and daily maintenance guides. All of this information is tracked using a rig tracking management system to monitor repairs and identify areas for improvement. The goal is to increase efficiency, extend the life of equipment, and improve profitability through decreased operational costs and downtime.
5 days TPM Workshop/Implementation Strategies at F&NTimothy Wooi
Implementing Total Productive Maintenance (TPM) towards being World Class in Equipment Maintenance. Our Goal is towards a Zero Downtime,Zero Defects, maximizing Production time to delight our Customers by our commitment to deliver Productivity & 1st Class Quality with on time Delivery towards 21st Century Business of Delighting our Customers.
The document discusses the steps for assembling and upgrading computer components. It covers how to open the computer case, install the power supply, motherboard, drives, adapter cards, and internal cables. It also discusses booting the computer for the first time, configuring the BIOS, and reasons for upgrading components like the motherboard, CPU, RAM, and storage drives. The document provides detailed instructions and considerations for assembling and upgrading various computer parts.
This document provides an overview of printers, including different types of printers, how to install and configure printers, preventative maintenance, and troubleshooting. It describes inkjet printers, laser printers, thermal printers, and impact printers. It also outlines the steps for installing and configuring printers, setting up printer sharing, performing preventative maintenance, and going through the troubleshooting process. The goal is to help technicians understand printers in order to install, maintain, and troubleshoot any issues that may arise.
This chapter discusses advanced laptops and portable devices. It describes wireless communication methods, repairs, components, and preventative maintenance for laptops. The chapter objectives are to describe wireless technologies, repairs, laptop components, and troubleshooting techniques. Various worksheets and optional labs are provided as learning activities. New terms introduced include technologies like Bluetooth, Wi-Fi, cellular networks as well as components like batteries, RAM, and docking stations. Changes from the previous version include additional details on wireless standards, cellular networks, and the laptop troubleshooting process.
This document provides an overview of operating systems and covers topics such as the characteristics, basic functions, types, installation, and customization of operating systems. It discusses desktop and network operating systems like Windows, Mac OS, and Linux. The document explains how to select an operating system based on customer needs, install and upgrade operating systems, set up user accounts, and navigate the Windows desktop interface. It also covers operating system directories, files, virtualization, and troubleshooting techniques.
This chapter provides an overview of personal computer components for IT instructors. It defines the roles of an IT technician and discusses important industry certifications like CompTIA A+ and EUCIP. The chapter then describes the basic hardware and software that make up a computer system, including external components like cases and power supplies, internal components, and common ports and interfaces. It explains the functions of the central processor, memory, storage devices, and expansion cards.
This document provides an overview of the Cisco IT Essentials 6.0 curriculum. The curriculum is designed to teach students about computer hardware, software, operating systems, networking, security, and troubleshooting. It aims to prepare students for CompTIA A+ certification exams. The course covers topics like assembling and configuring computers, installing operating systems, basic networking, security, and troubleshooting hardware and software issues. It includes hands-on lab activities using computer equipment like PCs, routers, and wireless adapters.
This chapter discusses operating systems, including their purpose, types, installation, and boot process. It describes how operating systems control hardware access, manage files and folders, provide user interfaces, and allow application management. The document compares desktop and network operating systems and provides guidance on determining the proper operating system based on a customer's needs. It also outlines the steps to install, set up, and customize operating systems like Windows XP.
This chapter discusses preventive maintenance and troubleshooting of personal computers. It describes how regular preventive maintenance through checking of hardware and software can reduce problems, downtime and repair costs. The chapter then outlines the steps of the troubleshooting process, which includes gathering information from the customer, verifying obvious issues, trying quick solutions, gathering data from the computer, evaluating the problem and implementing a solution. It emphasizes communicating with the customer and documenting all steps taken.
This document provides an overview of Chapter 6 from the textbook "IT Essentials: PC Hardware and Software v4.0". The chapter covers laptops, portable devices, their components, configurations, mobile phone standards, maintenance, and troubleshooting. It includes objectives, worksheets, activities, and descriptions of laptop components both inside and outside the device as well as on docking stations. Preventative maintenance techniques and a process for troubleshooting issues are also outlined.
The document discusses mobile devices, including hardware components, operating systems, and common features. It describes that mobile devices have non-upgradeable and non-field serviceable hardware. The main mobile operating systems are Android and iOS, which are compared. Common mobile device features like touchscreens, cameras, and GPS are also outlined. The document provides information on configuring network and email connectivity, securing devices with passcodes, and using cloud services for backup and remote management of smart devices.
The document discusses the responsibilities and skills required of IT professionals. It covers the importance of communication skills in troubleshooting, as well as ethics, legal issues, and how to handle difficult customers. It also describes call center environments and the roles of level 1 and 2 technicians. Key points are that technical expertise must be paired with strong communication, and IT professionals must maintain high ethical and professional standards.
This document provides an overview of the IT Essentials: PC Hardware and Software v4.1 course from Cisco Networking Academy. The summary is as follows:
1. IT Essentials v4.1 is a computer hardware and software course that covers PC assembly, maintenance, networking, security and prepares students for A+ certification.
2. The course is divided into two parts - fundamentals and advanced topics. It includes new content on current hardware, Windows Vista/7, networking and security skills.
3. Hands-on labs and new Packet Tracer activities provide an interactive learning experience. Instructors can access training, and students can download the Packet Tracer software.
4
This document discusses computer assembly and upgrading components. It covers installing components like the power supply, motherboard, drives, and cables. BIOS configuration and POST are described. Motherboard upgrades including the CPU, RAM, and BIOS flashing are outlined. Reasons for upgrading storage devices and input/output devices are provided.
IT Essentials (Version 7.0) - ITE Chapter 13 Exam AnswersITExamAnswers.net
This document contains the answers to exam questions for IT Essentials (ITE v6.0 + v7.0) Chapter 13. It discusses topics related to computer security including asymmetric encryption, hashing algorithms, social engineering, DDoS attacks, Windows features for encrypting files and drives, firewall types, malware types, and security best practices. The answers provided explanations for each multiple choice question to help students learn about common computer security threats and mitigation techniques.
Topics covered in this presentation:
What is an Embedded system ?
What are MISRA C rules ?
MISRA C conformance and deviations
Tools for MISRA C conformance
Embedded Security Rules
Open security controller security orchestration for openstackPriyanka Aash
Open Security Controller enables orchestration of multiple security functions in an OpenStack DC. OSC integrates with multiple SDN controllers and Security VNFs to automate protection of DC resources.
(Source: RSA Conference USA 2017)
lesson 3; inspect and test the configured cs and network handoutslorbz
1. The document provides safety tips for inspecting and testing computer systems and networks, including wearing proper protective equipment, disconnecting power sources before opening covers, and reporting any accidents.
2. Common network error messages are described along with potential solutions, such as checking that the network adapter is securely connected, renewing the DHCP lease on the router, and verifying wireless network settings and signal strength.
3. Steps for upgrading computer components like memory, video cards, hard drives, and processors are outlined to improve performance, along with tips for speeding up an existing computer through tasks like defragmenting and cleaning up storage.
Accelerate Ceph performance via SPDK related techniques Ceph Community
This document discusses techniques to accelerate Ceph performance using SPDK-related methods. It introduces DPDK for storage which uses DPDK and UNS technologies to optimize iSCSI front-end targets and provide higher system performance for iSCSI. A middle cache tiering solution is proposed to provide local caching and write logging between applications and Ceph for legacy protocol support, high performance, and high availability. The document also briefly mentions other building block techniques, I/O optimization, data processing acceleration, and ISA-L.
This document summarizes key topics from a lecture on security engineering, including design guidelines for security, design for deployment, and system survivability. The design guidelines encourage basing decisions on an explicit security policy, avoiding single points of failure, and failing securely. Deployment issues like vulnerable defaults and access permissions are addressed. Finally, resilience strategies like resistance, recognition and recovery are discussed to help systems continue operating during attacks.
Unit Drilling has a comprehensive preventative maintenance system to minimize downtime for customers. It includes regular oil sampling, equipment inspections, maintenance logs, alerts for common issues, and daily maintenance guides. All of this information is tracked using a rig tracking management system to monitor repairs and identify areas for improvement. The goal is to increase efficiency, extend the life of equipment, and improve profitability through decreased operational costs and downtime.
5 days TPM Workshop/Implementation Strategies at F&NTimothy Wooi
Implementing Total Productive Maintenance (TPM) towards being World Class in Equipment Maintenance. Our Goal is towards a Zero Downtime,Zero Defects, maximizing Production time to delight our Customers by our commitment to deliver Productivity & 1st Class Quality with on time Delivery towards 21st Century Business of Delighting our Customers.
Preventive Maintenance System - Rig Maintenancenfra erp
Eresource PMS is an intelligently integrated Preventive Maintenance application with a user-friendly interface that takes care of every rig management work effectively and efficiently.
This document discusses principles of preventive maintenance. It begins by defining different types of maintenance including breakdown, preventive, and predictive maintenance. It explains the benefits of preventive maintenance such as reducing costs, extending equipment life, and improving safety. The document then illustrates key concepts through a simulation game showing how reactive maintenance strategies can initially keep costs low but lead to declining performance over time compared to preventive maintenance. It also discusses challenges in implementing preventive maintenance such as short-term costs and local optimization mindsets. The document concludes by emphasizing that preventive maintenance is usually the best long-term strategy to maintain equipment performance.
The document discusses tools and equipment used in professional kitchens. It begins by quoting Angela Carter about the sacredness of kitchens and their tools. It then provides an overview of the unit's learning objectives, which are to recognize professional kitchen tools and equipment, select and care for knives, and understand kitchen organization. The document focuses on knives as the most important tool and discusses different knife types, materials, shapes, and the chef's knife in particular. It emphasizes the importance of having the proper tools for each task.
The document discusses preventive maintenance. It defines preventive maintenance as scheduled maintenance activities aimed at preventing mechanical breakdowns and failures. The primary goal of preventive maintenance is to prevent equipment failure before it occurs, maximizing the useful life of machines. Benefits include extended equipment life, savings on repairs, and minimized risk of failure. The document also outlines different types of maintenance cycles and lists the three B's of successful preventive maintenance as being based on time, performance, or condition.
Masonry: Tools and Preventive MaintenanceAlyssa Natano
This document discusses preventive maintenance and proper storage of tools and equipment. It begins by defining different types of lubricants like oils, greases, and solvents. It then provides examples of how to maintain common hand tools, power tools, and measuring devices through regular cleaning and inspections. The document stresses the importance of keeping an inventory of all tools and having processes for checking tools in and out to job sites. Proper preventive maintenance like cleaning, inspections, and lubrication can increase the efficiency, quality of work, and lifespan of tools and equipment.
This document provides an overview of approaches for presenting findings from systematic reviews through tables and graphs. It discusses using summary tables to combine data from multiple studies on key factors like population, intervention, outcomes, etc. Evidence maps are also presented as a graphical way to depict available studies and comparisons without results. Examples of different types of summary tables and evidence maps are provided to illustrate approaches for effectively conveying results from systematic reviews.
The document discusses the application layer of the OSI model. It describes how application layer protocols like HTTP, SMTP, and FTP allow end-user applications to access network services and interact with other applications. It also covers protocols that provide IP addressing services, such as DNS for translating names to addresses and DHCP for dynamically assigning IP addresses. The document provides examples of common application layer protocols and how they facilitate file transfers, email, and web browsing. It concludes with a high-level summary of the key roles of the application layer.
The document summarizes factors that led to Hitler's rise to power in Germany in the 1930s. The Weimar government was unpopular due to economic struggles following World War 1. Hitler gained support by promising to restore Germany's power and overturn the Treaty of Versailles. He took advantage of the weaknesses of the Weimar government and fears of communism. Through his charismatic speaking and reorganization of the Nazi party, Hitler was able to rise to power and become Chancellor of Germany in 1933.
Six loss analysis provides a dashboard approach to identifying areas of loss that impact equipment performance. The six categories of loss are: planned downtime, breakdowns, minor stops, speed loss, quality loss during production, and quality loss at startup. Tracking each loss area allows companies to pinpoint where to focus improvement efforts for greatest impact on output. Regular six loss analysis combined with addressing the biggest loss areas can accelerate performance gains.
1) The document outlines the preventive maintenance program of Al Ayuni Investment and Contracting Company. It defines preventive maintenance and describes the goals of avoiding equipment failure and unplanned downtime.
2) Details of the planning, implementation, and documentation processes are provided. Formats for maintenance scheduling, part requirements, and task tracking are referenced.
3) Requirements for equipment, tools, and dedicated personnel are listed to properly support the preventive maintenance of all company assets. This includes service trucks, stations, and a separate vehicle for greasing tasks.
The document outlines a strategy for implementing and sustaining a Total Productive Maintenance (TPM) program. It recommends announcing the program to management, educating the workforce, establishing committees and goals, and developing an equipment maintenance program. Key roles include operators maintaining basic equipment conditions and maintenance providing technical support. The strategy shifts emphasis from breakdown maintenance to planned and predictive maintenance. Implementation teams work to reduce equipment losses and transfer skills to operators. Quantitative goals include reductions in failures and downtime, while qualitative goals include improved culture, teamwork, and satisfaction. Sustaining the program requires maintaining standards, auditing results, and ensuring activities become daily routines.
Overall Equipment Effectiveness (OEE) measures the efficiency of machines during their loading time. OEE figures are determined by combining the availability and performance of equipment with the quality of parts made. Availability is affected by planned and unplanned downtime. Performance considers the actual speed of the machine compared to the ideal cycle time. Quality yield looks at the total quantity of good parts produced compared to the total processed. An OEE calculation takes the product of these three factors - availability, performance, and quality yield - to determine the overall equipment effectiveness percentage.
This document provides an overview of Overall Equipment Effectiveness (OEE). OEE is a metric used to measure manufacturing system performance by calculating availability, performance, and quality rates. It identifies the gap between actual and maximum potential output. The document discusses the "six big losses" that reduce OEE - breakdowns, setups, minor stoppages, speed losses, defects, and start-up waste. Tracking OEE can help companies increase productivity 10-50% and profits 20-300% by prioritizing issues and driving continuous improvement.
The document discusses overall equipment effectiveness (OEE) and its calculation. It defines OEE as the product of availability, performance, and quality. Availability accounts for downtime losses. Performance considers speed losses. Quality looks at good units produced. The document provides an example calculation of OEE for a machine with a 77.4% effectiveness rate. It also modifies the OEE calculation to include usability which accounts for stop time losses.
Preventive maintenance aims to prevent equipment failures through a scheduled program of planned maintenance actions. It involves replacing worn components before failure to preserve reliability and enhance equipment performance. An effective preventive maintenance system provides many advantages like reduced downtime, increased asset life, and lower repair costs. While preventive maintenance carries some risks if not properly planned and executed, its overall costs are typically much lower than emergency maintenance required by unexpected failures. Data-driven condition monitoring techniques help optimize preventive maintenance programs.
This document discusses preventative maintenance and safety precautions for computer hardware. It covers topics like preventative maintenance tasks, cleaning internal components, inspecting components, and troubleshooting processes. It also addresses potential hardware hazards, electrostatic discharge precautions, and establishing a safe work environment and procedures for tool use. The overall goal is to provide guidance on properly maintaining computer equipment to prevent issues, ensure technician safety, and establish structured repair processes.
Computer troubleshooting is a systematic process used to locate the cause of faults in computer systems and resolve hardware and software issues. It involves following a logical process with steps like identifying the problem, establishing a probable cause, testing theories to determine the cause, developing a solution plan, verifying the system works, and documenting findings. Troubleshooting skills are developed over time through experience solving different problems. Common computer issues include failures of storage devices, motherboards, power supplies, CPUs, memory, displays, and more. Solutions may involve checking connections, updating drivers or BIOS, replacing faulty components, and ensuring proper cooling and power.
This document discusses basic troubleshooting techniques, including improving computer performance, caring for computer hardware, performing maintenance, and troubleshooting steps. It provides tips on ensuring sufficient system resources, storage space, and hardware care. Troubleshooting guidance includes collecting information on issues, trying basic solutions, seeking help from specialists, and documenting incidents to prevent future problems.
A system administrator is responsible for maintaining and operating computer systems and networks. Their duties include monitoring security and resources, performing backups, installing new hardware and software, managing user accounts, troubleshooting problems, and ensuring system performance. Specifically, they audit systems and software, perform backups, apply operating system updates and configuration changes, install and configure new hardware and software, add/remove user accounts and reset passwords, and answer technical queries. System administrators are also responsible for system security, documentation, and ensuring the network infrastructure is functioning properly.
This document provides a module plan for teaching the competency of installing and configuring computer systems. It outlines 5 learning outcomes including assembling computer hardware, preparing installers, installing operating systems and device drivers, installing application software, and conducting testing and documentation. For each outcome, it describes the learning activities, assessment plans, and the teacher's self-reflection. It also includes an introduction to the module, the learning outcomes, sample session plans, and module content details.
This document provides information on preventive maintenance and troubleshooting for computer systems. It discusses the importance of preventive maintenance in preventing failures and reducing troubleshooting needs. The document outlines best practices for hardware and software maintenance, including cleaning components and updating software/drivers. It also describes the steps of the troubleshooting process, including identifying the problem, establishing probable causes, testing theories, implementing solutions, and documenting outcomes. The document stresses the importance of data protection, such as backups, before performing any repairs.
This chapter outlines the objectives of preventative maintenance and troubleshooting. It discusses the importance of preventative maintenance through regular inspection and cleaning to prevent failures. The troubleshooting process is described as a 5-step approach: 1) identify the problem, 2) generate potential causes, 3) test theories, 4) implement a solution, and 5) verify the solution and document findings. Backing up data and obtaining liability waivers are also emphasized before any repair work.
The document discusses troubleshooting and support for computer networks. It describes the benefits of documenting a network, including making equipment changes easier and aiding troubleshooting. It outlines the problem-solving process, including defining the problem, gathering information, considering causes, testing solutions, and preventing future issues. Common troubleshooting tools are also described, such as ping, trace route, network monitors, and cable testers.
Apply Problem Solving Techniques to Routine Malfunctions.pptxwesendesta2
The document provides information on identifying and determining the root causes of routine computer problems. It discusses identifying problems as hardware, software, user, or procedural related. Common hardware issues include problems with components like the power supply, motherboard, or CPU. Software problems can arise from operating systems, applications, or outdated drivers. User errors and procedural problems are also examined. The document outlines a six-step problem solving model to determine the fundamental root causes of identified issues through investigation and developing potential cause statements. Common computer problems and their potential solutions are also reviewed.
This document outlines the aims, learning outcomes, assessment, and content of an IT Principles Level 3 course. The course aims to provide advanced skills and knowledge in system tasks, costing and operating computers, and supervising others. It covers five outcomes: planning hardware and software acquisition, using and maintaining files and directories on networks, gathering and distributing information using networks, and identifying health and safety issues. Candidates will be assessed through a practical assignment and online multiple choice test covering both practical skills and underpinning knowledge.
Always Have a Fire Extinguisher and Other Lessons from the Celo Incentivized ...cLabs, working on Celo
Celo's incentivized testnet had several goals including building a validator community, cultivating operational expertise, and distributing rewards. Key design choices included a manual faucet process, step function for rewards over multiple phases, and challenges to encourage participation. Lessons learned included the need for around the clock support, security audits as a useful tool, establishing fair adjudication processes, keeping players engaged even if behind, and having contingency plans for failures.
Task 1.Complete the BIA table below and use it for the remaialehosickg3
Task 1.
Complete the BIA table below and use it for the remainder of the assignment.
You may want to review your Lab #07 assignment where you developed a BIA table.
Information needed to create the Business Functions and Processes below are in the “Project Management Plan” scenario and the “Project Health Network Visual”.
Hint: look at the processes that go from the customers and into the systems/applications in the “Project Health Network Visual”.
Business Function or Process
Business Impact Factor
Recovery Time Objective
IT Systems/Apps Infrastructure Impacts
Task 1: Business Impact Analysis – extracts from the Boiler Plate
1.
Overview
This Business Impact Analysis (BIA) is developed as part of the contingency planning process for the HNetExchange Message system, HNetConnect Directory system and HNetPay Payment system
.
It was prepared for Health Network, Inc (Health Network).
2.
System Description
Indicate the
operating environment (i.e. Data Center, etc)
,
physical location
,
general location of users
, and
partnerships with external organizations/systems
.
Include information regarding any other technical considerations that are important for recovery purposes, such as backup procedures or the
lack of backup procedures
.>
3.1.1
Identify Outage Impacts and Estimated Downtime
Estimated Downtime
The table below identifies the MTD, RTO, and RPO for the organizational business processes that rely on the HNetExchange Message system, HNetConnect Directory system and HNetPay Payment system.
Mission/Business Process
For HNetExchange
MTD
RTO
RPO
Mission/Business Process
For HNetConnect
MTD
RTO
RPO
Mission/Business Process
For HNetPay
MTD
RTO
RPO
Task 2: Business Continuity Plan – extracts from the Boiler Plate
These tapes are then stored offsite.
The HNetPay data is backed-up daily and retained for 6 months.
The HNetMessage messages are backed-up daily and retained for 3 months.
All other data is backed-up weekly and retained for 60 days.
If the BCP is executed, the most current tapes are copied and mailed to the alternate site.
Modify the statements below to reflect this decision.>
Emergency management standards
Data backup policy
Full and incremental backups preserve corporate information assets and should be performed on a regular basis for audit logs and files that are irreplaceable, have a high replacement cost, or are considered critical. Backup media should be stored in a secure, geographically separate location from the original and isolated from environmental hazards.
Department-specific data and document retention policies specify what records must be retained and for how long. All organizations are accountable for carrying out the provisions of the instruction for records in their organization.
IT follows these standards for its data backup and archiving:
Tape retention policy
Backup media is stored at locations that are secure, isolated from envir ...
The document discusses various system development methodologies including:
1) The system development life cycle (SDLC) which includes planning, analysis, design, implementation, and use phases.
2) The steering committee's role in managing projects through different life cycle phases.
3) Prototyping which can be used to develop an operational system or serve as a blueprint for system development.
4) Rapid application development (RAD) which uses specialized teams and tools like CASE to quickly develop systems.
MAINTAINING AND REPAIRING COMPUTER SYSTEMS AND NETWORKS 12.pptxRichardSugbo
The document discusses maintaining and repairing computer systems and networks. It describes preventative maintenance which includes planned and condition-based maintenance to monitor equipment and address issues before failures occur. Guidelines are provided for developing systematic maintenance plans for both hardware and software, including tips for proper computer placement, file backups, software updates, and monitoring for potential issues. The document also discusses system testing to thoroughly exercise the full computer system and ensure proper functioning of integrated components.
The document discusses network troubleshooting techniques. It recommends completing all troubleshooting activities in the chapter, as they will help students preparing for the CCNA exam. The document outlines troubleshooting methodology, including using network documentation, following a troubleshooting process, and isolating issues by layer. It also discusses specific troubleshooting tools, symptoms at different layers, and steps for troubleshooting IP connectivity issues.
1) E-Business Suite Diagnostics is a free tool from Oracle that helps gather and analyze information from an E-Business Suite system related to issues or setup configurations. It includes a set of diagnostic tests organized by product.
2) The tests examine collected information, provide feedback, and suggest resolution steps. This aids in problem avoidance, self-service resolution without Oracle Support, and reducing resolution time.
3) The tests are accessed through a web interface and do not make changes to the system. They are organized by product and functionality for easy use even by those without technical expertise.
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إضغ بين إيديكم من أقوى الملازم التي صممتها
ملزمة تشريح الجهاز الهيكلي (نظري 3)
💀💀💀💀💀💀💀💀💀💀
تتميز هذهِ الملزمة بعِدة مُميزات :
1- مُترجمة ترجمة تُناسب جميع المستويات
2- تحتوي على 78 رسم توضيحي لكل كلمة موجودة بالملزمة (لكل كلمة !!!!)
#فهم_ماكو_درخ
3- دقة الكتابة والصور عالية جداً جداً جداً
4- هُنالك بعض المعلومات تم توضيحها بشكل تفصيلي جداً (تُعتبر لدى الطالب أو الطالبة بإنها معلومات مُبهمة ومع ذلك تم توضيح هذهِ المعلومات المُبهمة بشكل تفصيلي جداً
5- الملزمة تشرح نفسها ب نفسها بس تكلك تعال اقراني
6- تحتوي الملزمة في اول سلايد على خارطة تتضمن جميع تفرُعات معلومات الجهاز الهيكلي المذكورة في هذهِ الملزمة
واخيراً هذهِ الملزمة حلالٌ عليكم وإتمنى منكم إن تدعولي بالخير والصحة والعافية فقط
كل التوفيق زملائي وزميلاتي ، زميلكم محمد الذهبي 💊💊
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Andreas Schleicher presents PISA 2022 Volume III - Creative Thinking - 18 Jun...EduSkills OECD
Andreas Schleicher, Director of Education and Skills at the OECD presents at the launch of PISA 2022 Volume III - Creative Minds, Creative Schools on 18 June 2024.
This document provides an overview of wound healing, its functions, stages, mechanisms, factors affecting it, and complications.
A wound is a break in the integrity of the skin or tissues, which may be associated with disruption of the structure and function.
Healing is the body’s response to injury in an attempt to restore normal structure and functions.
Healing can occur in two ways: Regeneration and Repair
There are 4 phases of wound healing: hemostasis, inflammation, proliferation, and remodeling. This document also describes the mechanism of wound healing. Factors that affect healing include infection, uncontrolled diabetes, poor nutrition, age, anemia, the presence of foreign bodies, etc.
Complications of wound healing like infection, hyperpigmentation of scar, contractures, and keloid formation.
A Visual Guide to 1 Samuel | A Tale of Two HeartsSteve Thomason
These slides walk through the story of 1 Samuel. Samuel is the last judge of Israel. The people reject God and want a king. Saul is anointed as the first king, but he is not a good king. David, the shepherd boy is anointed and Saul is envious of him. David shows honor while Saul continues to self destruct.
Chapter wise All Notes of First year Basic Civil Engineering.pptxDenish Jangid
Chapter wise All Notes of First year Basic Civil Engineering
Syllabus
Chapter-1
Introduction to objective, scope and outcome the subject
Chapter 2
Introduction: Scope and Specialization of Civil Engineering, Role of civil Engineer in Society, Impact of infrastructural development on economy of country.
Chapter 3
Surveying: Object Principles & Types of Surveying; Site Plans, Plans & Maps; Scales & Unit of different Measurements.
Linear Measurements: Instruments used. Linear Measurement by Tape, Ranging out Survey Lines and overcoming Obstructions; Measurements on sloping ground; Tape corrections, conventional symbols. Angular Measurements: Instruments used; Introduction to Compass Surveying, Bearings and Longitude & Latitude of a Line, Introduction to total station.
Levelling: Instrument used Object of levelling, Methods of levelling in brief, and Contour maps.
Chapter 4
Buildings: Selection of site for Buildings, Layout of Building Plan, Types of buildings, Plinth area, carpet area, floor space index, Introduction to building byelaws, concept of sun light & ventilation. Components of Buildings & their functions, Basic concept of R.C.C., Introduction to types of foundation
Chapter 5
Transportation: Introduction to Transportation Engineering; Traffic and Road Safety: Types and Characteristics of Various Modes of Transportation; Various Road Traffic Signs, Causes of Accidents and Road Safety Measures.
Chapter 6
Environmental Engineering: Environmental Pollution, Environmental Acts and Regulations, Functional Concepts of Ecology, Basics of Species, Biodiversity, Ecosystem, Hydrological Cycle; Chemical Cycles: Carbon, Nitrogen & Phosphorus; Energy Flow in Ecosystems.
Water Pollution: Water Quality standards, Introduction to Treatment & Disposal of Waste Water. Reuse and Saving of Water, Rain Water Harvesting. Solid Waste Management: Classification of Solid Waste, Collection, Transportation and Disposal of Solid. Recycling of Solid Waste: Energy Recovery, Sanitary Landfill, On-Site Sanitation. Air & Noise Pollution: Primary and Secondary air pollutants, Harmful effects of Air Pollution, Control of Air Pollution. . Noise Pollution Harmful Effects of noise pollution, control of noise pollution, Global warming & Climate Change, Ozone depletion, Greenhouse effect
Text Books:
1. Palancharmy, Basic Civil Engineering, McGraw Hill publishers.
2. Satheesh Gopi, Basic Civil Engineering, Pearson Publishers.
3. Ketki Rangwala Dalal, Essentials of Civil Engineering, Charotar Publishing House.
4. BCP, Surveying volume 1
This presentation was provided by Racquel Jemison, Ph.D., Christina MacLaughlin, Ph.D., and Paulomi Majumder. Ph.D., all of the American Chemical Society, for the second session of NISO's 2024 Training Series "DEIA in the Scholarly Landscape." Session Two: 'Expanding Pathways to Publishing Careers,' was held June 13, 2024.
Gender and Mental Health - Counselling and Family Therapy Applications and In...PsychoTech Services
A proprietary approach developed by bringing together the best of learning theories from Psychology, design principles from the world of visualization, and pedagogical methods from over a decade of training experience, that enables you to: Learn better, faster!
Philippine Edukasyong Pantahanan at Pangkabuhayan (EPP) CurriculumMJDuyan
(𝐓𝐋𝐄 𝟏𝟎𝟎) (𝐋𝐞𝐬𝐬𝐨𝐧 𝟏)-𝐏𝐫𝐞𝐥𝐢𝐦𝐬
𝐃𝐢𝐬𝐜𝐮𝐬𝐬 𝐭𝐡𝐞 𝐄𝐏𝐏 𝐂𝐮𝐫𝐫𝐢𝐜𝐮𝐥𝐮𝐦 𝐢𝐧 𝐭𝐡𝐞 𝐏𝐡𝐢𝐥𝐢𝐩𝐩𝐢𝐧𝐞𝐬:
- Understand the goals and objectives of the Edukasyong Pantahanan at Pangkabuhayan (EPP) curriculum, recognizing its importance in fostering practical life skills and values among students. Students will also be able to identify the key components and subjects covered, such as agriculture, home economics, industrial arts, and information and communication technology.
𝐄𝐱𝐩𝐥𝐚𝐢𝐧 𝐭𝐡𝐞 𝐍𝐚𝐭𝐮𝐫𝐞 𝐚𝐧𝐝 𝐒𝐜𝐨𝐩𝐞 𝐨𝐟 𝐚𝐧 𝐄𝐧𝐭𝐫𝐞𝐩𝐫𝐞𝐧𝐞𝐮𝐫:
-Define entrepreneurship, distinguishing it from general business activities by emphasizing its focus on innovation, risk-taking, and value creation. Students will describe the characteristics and traits of successful entrepreneurs, including their roles and responsibilities, and discuss the broader economic and social impacts of entrepreneurial activities on both local and global scales.
Walmart Business+ and Spark Good for Nonprofits.pdfTechSoup
"Learn about all the ways Walmart supports nonprofit organizations.
You will hear from Liz Willett, the Head of Nonprofits, and hear about what Walmart is doing to help nonprofits, including Walmart Business and Spark Good. Walmart Business+ is a new offer for nonprofits that offers discounts and also streamlines nonprofits order and expense tracking, saving time and money.
The webinar may also give some examples on how nonprofits can best leverage Walmart Business+.
The event will cover the following::
Walmart Business + (https://business.walmart.com/plus) is a new shopping experience for nonprofits, schools, and local business customers that connects an exclusive online shopping experience to stores. Benefits include free delivery and shipping, a 'Spend Analytics” feature, special discounts, deals and tax-exempt shopping.
Special TechSoup offer for a free 180 days membership, and up to $150 in discounts on eligible orders.
Spark Good (walmart.com/sparkgood) is a charitable platform that enables nonprofits to receive donations directly from customers and associates.
Answers about how you can do more with Walmart!"
How Barcodes Can Be Leveraged Within Odoo 17Celine George
In this presentation, we will explore how barcodes can be leveraged within Odoo 17 to streamline our manufacturing processes. We will cover the configuration steps, how to utilize barcodes in different manufacturing scenarios, and the overall benefits of implementing this technology.
Cisco Networking Academy program
IT Essentials 5.0
Chapter 4: Overview of Preventive Maintenance
The purpose of this chapter is to introduce preventive maintenance and the troubleshooting process. Upon completion of this chapter, students will be able to perform tasks related to:
4.1 Explain the purpose of preventive maintenance
4.2 Identify the steps of the troubleshooting process
4.1.1 Preventive Maintenance Overview
4.1.1.1 Benefits of Preventive Maintenance
Be proactive in computer equipment maintenance and data protection. By performing regular maintenance routines, you can reduce potential hardware and software problems. This will reduce computer down time and repair costs.
A preventive maintenance plan is developed based on the needs of the equipment. A computer exposed to a dusty environment, such as a construction site, will need more attention than equipment in an office environment. High-traffic networks, such as a school network, may require additional scanning and removal of malicious software or unwanted files. Document the routine maintenance tasks that must be performed on the computer equipment and the frequency of each task. This list of tasks can then be used to create a maintenance program.
Preventive maintenance is used to reduce the likelihood of hardware or software problems by systematically and periodically checking hardware and software to ensure proper operation.
To protect the computer, extend the life of the components, and protect the data, proper preventive maintenance is required. Performance issues may arise without regular maintenance and cleaning. Reliable and stable equipment is a result of good preventive maintenance procedures.
4.1.1.2 Preventive Maintenance Tasks
Make sure that the hardware is operating properly.
Check the condition of cables, components, and peripherals.
Repair or replace any components that show signs of abuse or excess wear.
Keep components clean in order to reduce the likelihood of overheating.
Use these tasks as a guide to create a hardware maintenance program that fits the needs of your computer equipment.
Remove the dust from fan intakes.
Remove dust from power supply.
Remove dust from components inside the computer.
Clean mouse and keyboard.
Check and secure any loose cables.
For example, some environments, such as construction sites, may require computer equipment to be cleaned more often than other environments.
Software Maintenance
Verify that the installed software is current. Follow the policies of the organization when installing security updates, operating system updates, and program updates. Many organizations do not allow updates until extensive testing has been completed. This testing is done to confirm that the update will not cause problems with the operating system and software.
Use the tasks listed on the slide as a guide to create a software maintenance schedule that fits the needs of your computer equipment.
Verify current version.
Review security updates.
Review software updates.
Review driver updates.
Update virus definition files.
Scan for viruses and spyware.
Remove unwanted programs.
Scan hard drives for errors.
Defragment hard drives.
For example, high-traffic networks, such as a school network, may require additional scanning and removal of malicious software or unwanted files.
4.1.1.3 Clean the Case and Internal Components
When dust accumulates inside the computer, it prevents the flow of air and reduces the cooling of components. Several components are important to keep clean:
Heat sink and fan assembly
RAM
Adapter cards
Motherboard
Fans
Power supply
Internal drives
4.1.1.4 Inspect Internal Components
The best method of keeping a computer in good condition is to examine the computer on a regular schedule. This is a basic checklist of components to inspect.
CPU heat sink and fan assembly - Examine the CPU heat sink and fan assembly for dust buildup. Make sure that the fan can spin freely. Check that the fan power cable is secure. Check the fan while the power is on to see the fan turn.
RAM connections - The RAM chips should be seated securely in the RAM slots. Sometimes the retaining clips can loosen. Reseat them, if necessary. Use compressed air to remove dust.
Storage devices - Inspect all storage devices. All cables should be firmly connected. Check for loose, missing, or incorrectly set jumpers. A drive should not produce rattling, knocking, or grinding sounds. Read the manufacturer’s documentation to learn how to clean the optical drive and tape heads. You can buy laser lens cleaning kits for computer optical drives. Tape head cleaning kits are also available.
Adapter cards - Adapter cards should be seated properly in their expansion slots. Loose cards can cause short circuits. Secure adapter cards with the retaining screw or clip to avoid having the cards come loose in their expansion slots. Use compressed air to remove dirt and dust on the adapter cards and the expansion slots.
Screws - Loose screws can cause problems if they are not immediately fixed or removed. A loose screw in the case can cause a short circuit or roll into a position where the screw is hard to remove.
Cables - Examine all cable connections. Look for broken and bent pins. Ensure that all connector retaining screws are finger-tight. Make sure cables are not crimped, pinched, or severely bent.
Power devices - Inspect power strips, surge suppressors (surge protectors), and UPS devices. Make sure that there is proper and unobstructed ventilation. Replace the power device if it does not work properly.
Keyboard and mouse - Use compressed air to clean the keyboard, mouse, and mouse sensor.
4.1.1.5 Environmental Concerns
Follow these guidelines to help ensure optimal computer operating performance:
Do not obstruct vents or airflow to the internal components. A computer can overheat if air circulation is obstructed.
Keep the room temperature between 45 to 90 degrees Fahrenheit (7 to 32 degrees Celsius).
Keep the humidity level between 10 to 80 percent.
4.2.1 Identify the steps of the troubleshooting process
NOTE: The term customer, as used in this course, is any user that requires technical computer assistance.
4.2.1.1 Introduction to Troubleshooting
Troubleshooting requires an organized and logical approach to problems with computers and other components. A logical approach to troubleshooting allows you to eliminate variables and identify causes of problems in a systematic order.
4.2.1.1 Introduction to Troubleshooting
Some repairs, such as replacing a hard drive or reinstalling an operating system, may put the data on the computer at risk. Make sure that you do everything possible to prevent data loss while attempting repairs.
Some data is irreplaceable. Before you attempt any type of repair or modification to a computer, make sure that the data has been properly backed up.
CAUTION: Although data protection is not one of the six troubleshooting steps, you must protect data before beginning any work on a customer's computer. If your work results in data loss for the customer, you or your company could be held liable.
A liability release form should contain at least the following information:
Permission to work on the computer without a current backup available.
Release from liability if data is lost or corrupted.
Description of the work to be performed.
4.2.1.2 Identify the problem
When you are talking to the customer, you should follow these guidelines:
Ask direct questions to gather information.
Do not use industry jargon when talking to customers.
Do not talk down to the customer.
Do not insult the customer.
Do not accuse the customer of causing the problem.
By communicating effectively, you will be able to elicit the most relevant information about the problem from the customer.
Open-ended questions are used first to obtain general information and allow the customer to explain the details of the problem in their own words. Use the information collected from open-ended questions, narrow down the problem with closed-ended questions.
Closed-ended questions generally require a "yes" or "no" answer. These questions are intended to get the most relevant information in the shortest time possible.
The information obtained from the customer should be documented in the work order and in the repair journal. Write down anything that you think may be important for you or another technician. Often, the small details can lead to the solution of a difficult or complicated problem.
Event ViewerWhen system, user, or software errors occur on a computer, the Event Viewer is updated with information about the errors. The Event Viewer application records the following information about the problem:
What problem occurred
Date and time of the problem
Severity of the problem
Source of the problem
Event ID number
Which user was logged in when the problem occurred
Although the Event Viewer lists details about the error, you might need to further research the solution.
Device ManagerThe Device Manager displays all of the devices that are configured on a computer. Any device that the operating system determines to be acting incorrectly is flagged with an error icon. This type of error has a yellow circle with an exclamation point (!). If a device is disabled, it is flagged with a red circle and an "X". A yellow question mark (?) indicates that the hardware is not functioning properly because the system does not know which driver to install for the hardware.
Beep CodesEach BIOS manufacturer has a unique beep sequence for hardware failures. When troubleshooting, power on the computer and listen. As the system proceeds through the POST, most computers emit one beep to indicate that the system is booting properly. If there is an error, you might hear multiple beeps. Document the beep code sequence, and research the code to determine the specific hardware failure.
BIOS InformationIf the computer boots and stops after the POST, investigate the BIOS settings to determine where to find the problem. A device might not be detected or configured properly. Refer to the motherboard manual to make sure that the BIOS settings are accurate.
Diagnostic ToolsConduct research to determine which software is available to help diagnose and solve problems. There are many programs available that can help you troubleshoot hardware. Often, manufacturers of system hardware provide diagnostic tools of their own. For instance, a hard drive manufacturer, might provide a tool that you can use to boot the computer and diagnose why the hard drive does not boot Windows.
Student Activity –Indentify the Problem Drag and Drop
4.2.1.3 Establish a theory of probable cause
The second step in the troubleshooting process is to establish a theory of probable causes. Even though the customer may think that there is a major problem, start with the obvious issues before moving to more complex diagnoses. List the easiest or most obvious causes at the top with the more complex causes at the bottom.
Here is a list of obvious issues to check:
Device is powered off
Surge protector is turned off
Power switch for an outlet is turned off
Loose external cable connections
Non-bootable disk in floppy drive
Incorrect boot order in BIOS
You will test each of these causes in the next steps of the troubleshooting process.
4.2.1.4 Test the Theory to Determine cause
As you become more experienced at troubleshooting computers, you will work through the steps in the process faster. For now, practice each step to better understand the troubleshooting process.
If necessary, escalate the problem to a technician with more experience. Before you escalate, document each test that you try. Information about the tests is vital if the problem needs to be escalated to another technician.
4.2.1.5 Establish a Plan of Action to Resolve the Problem and Implement the Solution
Establish a plan of action to resolve the problem and implement the solution.
Evaluate the problem and research possible solutions. Prioritize solutions starting with the easiest and fastest to implement. Create a list of possible solutions and implement them one at a time. If you implement a possible solution and it does not work, reverse the solution and try another.
4.2.1.6 Verify Full System Functionality and, If Applicable, Implement Preventive Measures
After the repairs to the computer have been completed, continue the troubleshooting process by verifying full system functionality and implementing any preventive measures. Whenever possible, have the customer verify the solution and system functionality.
4.2.1.7 Document Findings, Actions, and Outcomes
After the repairs to the computer have been completed, you should finish the troubleshooting process by closing with the customer. Communicate the problem and the solution to the customer verbally and in all documentation.
Document in the work order and technician’s journal.