The document provides an overview of computer hardware components, including input devices like keyboards and mice, output devices like monitors and printers, processing components like the CPU and memory, storage devices like hard drives and flash drives, ports for connecting peripherals, and power controls. It describes the functions of the basic parts of a computer and how they work together to process data.
Input devices
WHAT IS INPUT?
WHAT ARE INPUT DEVICES?
WHAT IS HARDWARE?
WHAT IS SOFTWARE?
input Devices
1) KEYBOARD
2) POINTING DEVICES
3) MOUSE
TYPES OF MOUSE
1. Mechanical mouse
2. Optical mouse
3. Wireless mouse
JOY STICK
TRACKBALL
TOUCHPAD
TOUCHSCREEN
DIGITAL PEN
LIGHT PEN
WHEEL
BIOMETRIC INPUT DEVICES
VOICE RECOGNITION
THUMB IMPRESSION
SIGNATURE VERIFICATION
RETINA SCANNER
FACE RECOGNITION
MIC/ HEAD PHONE
DIGITAL CAMERA
DIGITAL SCANNER
This HIBB first covers the physical components of a computer and their usage, such as keyboards, monitors, and USB cables. It also includes how to use some of these physical components, such as moving a mouse and how to insert a CD. It then moves on to basic interactions with a computer, including logging in, opening programs, and saving files. At the end of this HIBB, students will be aware of the major physical components of a computer. In addition to this, students will be able to perform some basic functions on the computer, including logging in to the computer, opening programs, saving files.
Input devices
WHAT IS INPUT?
WHAT ARE INPUT DEVICES?
WHAT IS HARDWARE?
WHAT IS SOFTWARE?
input Devices
1) KEYBOARD
2) POINTING DEVICES
3) MOUSE
TYPES OF MOUSE
1. Mechanical mouse
2. Optical mouse
3. Wireless mouse
JOY STICK
TRACKBALL
TOUCHPAD
TOUCHSCREEN
DIGITAL PEN
LIGHT PEN
WHEEL
BIOMETRIC INPUT DEVICES
VOICE RECOGNITION
THUMB IMPRESSION
SIGNATURE VERIFICATION
RETINA SCANNER
FACE RECOGNITION
MIC/ HEAD PHONE
DIGITAL CAMERA
DIGITAL SCANNER
This HIBB first covers the physical components of a computer and their usage, such as keyboards, monitors, and USB cables. It also includes how to use some of these physical components, such as moving a mouse and how to insert a CD. It then moves on to basic interactions with a computer, including logging in, opening programs, and saving files. At the end of this HIBB, students will be aware of the major physical components of a computer. In addition to this, students will be able to perform some basic functions on the computer, including logging in to the computer, opening programs, saving files.
Computer systems and software - Written by Mark John LadoMark John Lado, MIT
After going through this lesson you would be able to:
familiarise yourself with characteristics of computers
identify the basic components of a computer
explain the importance of various units of a computer
differentiate between system software and application
software
explain the importance of operating system
Introduction to Computing - Essentials of Technology - Day 1Mark John Lado, MIT
- Familiarize yourself with characteristics of computers
- Identify the basic components of a computer
- Explain the importance of various units of a computer
- Differentiate between system software and application software
- Explain the importance of operating system
- Know the internal parts of the system unit.
- Get acquainted in the elements of computer system.
this presentation is all about the computer introduction, especially for the newbies or for the kids.. These slides can also be used in the schools or tuition to educate the children
A very nice presentation from jodie
Computer systems and software - Written by Mark John LadoMark John Lado, MIT
After going through this lesson you would be able to:
familiarise yourself with characteristics of computers
identify the basic components of a computer
explain the importance of various units of a computer
differentiate between system software and application
software
explain the importance of operating system
Introduction to Computing - Essentials of Technology - Day 1Mark John Lado, MIT
- Familiarize yourself with characteristics of computers
- Identify the basic components of a computer
- Explain the importance of various units of a computer
- Differentiate between system software and application software
- Explain the importance of operating system
- Know the internal parts of the system unit.
- Get acquainted in the elements of computer system.
this presentation is all about the computer introduction, especially for the newbies or for the kids.. These slides can also be used in the schools or tuition to educate the children
A very nice presentation from jodie
The Concept of ICT and its Related TerminilogiesAdjeiKwadjo
This write up teaches the reader to understand the general concept of Information Communication Technology (ICT), highlighting its categories and some relevant applications
PHP Frameworks: I want to break free (IPC Berlin 2024)Ralf Eggert
In this presentation, we examine the challenges and limitations of relying too heavily on PHP frameworks in web development. We discuss the history of PHP and its frameworks to understand how this dependence has evolved. The focus will be on providing concrete tips and strategies to reduce reliance on these frameworks, based on real-world examples and practical considerations. The goal is to equip developers with the skills and knowledge to create more flexible and future-proof web applications. We'll explore the importance of maintaining autonomy in a rapidly changing tech landscape and how to make informed decisions in PHP development.
This talk is aimed at encouraging a more independent approach to using PHP frameworks, moving towards a more flexible and future-proof approach to PHP development.
LF Energy Webinar: Electrical Grid Modelling and Simulation Through PowSyBl -...DanBrown980551
Do you want to learn how to model and simulate an electrical network from scratch in under an hour?
Then welcome to this PowSyBl workshop, hosted by Rte, the French Transmission System Operator (TSO)!
During the webinar, you will discover the PowSyBl ecosystem as well as handle and study an electrical network through an interactive Python notebook.
PowSyBl is an open source project hosted by LF Energy, which offers a comprehensive set of features for electrical grid modelling and simulation. Among other advanced features, PowSyBl provides:
- A fully editable and extendable library for grid component modelling;
- Visualization tools to display your network;
- Grid simulation tools, such as power flows, security analyses (with or without remedial actions) and sensitivity analyses;
The framework is mostly written in Java, with a Python binding so that Python developers can access PowSyBl functionalities as well.
What you will learn during the webinar:
- For beginners: discover PowSyBl's functionalities through a quick general presentation and the notebook, without needing any expert coding skills;
- For advanced developers: master the skills to efficiently apply PowSyBl functionalities to your real-world scenarios.
Alt. GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using ...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
Dr. Sean Tan, Head of Data Science, Changi Airport Group
Discover how Changi Airport Group (CAG) leverages graph technologies and generative AI to revolutionize their search capabilities. This session delves into the unique search needs of CAG’s diverse passengers and customers, showcasing how graph data structures enhance the accuracy and relevance of AI-generated search results, mitigating the risk of “hallucinations” and improving the overall customer journey.
Observability Concepts EVERY Developer Should Know -- DeveloperWeek Europe.pdfPaige Cruz
Monitoring and observability aren’t traditionally found in software curriculums and many of us cobble this knowledge together from whatever vendor or ecosystem we were first introduced to and whatever is a part of your current company’s observability stack.
While the dev and ops silo continues to crumble….many organizations still relegate monitoring & observability as the purview of ops, infra and SRE teams. This is a mistake - achieving a highly observable system requires collaboration up and down the stack.
I, a former op, would like to extend an invitation to all application developers to join the observability party will share these foundational concepts to build on:
In his public lecture, Christian Timmerer provides insights into the fascinating history of video streaming, starting from its humble beginnings before YouTube to the groundbreaking technologies that now dominate platforms like Netflix and ORF ON. Timmerer also presents provocative contributions of his own that have significantly influenced the industry. He concludes by looking at future challenges and invites the audience to join in a discussion.
Encryption in Microsoft 365 - ExpertsLive Netherlands 2024Albert Hoitingh
In this session I delve into the encryption technology used in Microsoft 365 and Microsoft Purview. Including the concepts of Customer Key and Double Key Encryption.
UiPath Test Automation using UiPath Test Suite series, part 5DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 5. In this session, we will cover CI/CD with devops.
Topics covered:
CI/CD with in UiPath
End-to-end overview of CI/CD pipeline with Azure devops
Speaker:
Lyndsey Byblow, Test Suite Sales Engineer @ UiPath, Inc.
A tale of scale & speed: How the US Navy is enabling software delivery from l...sonjaschweigert1
Rapid and secure feature delivery is a goal across every application team and every branch of the DoD. The Navy’s DevSecOps platform, Party Barge, has achieved:
- Reduction in onboarding time from 5 weeks to 1 day
- Improved developer experience and productivity through actionable findings and reduction of false positives
- Maintenance of superior security standards and inherent policy enforcement with Authorization to Operate (ATO)
Development teams can ship efficiently and ensure applications are cyber ready for Navy Authorizing Officials (AOs). In this webinar, Sigma Defense and Anchore will give attendees a look behind the scenes and demo secure pipeline automation and security artifacts that speed up application ATO and time to production.
We will cover:
- How to remove silos in DevSecOps
- How to build efficient development pipeline roles and component templates
- How to deliver security artifacts that matter for ATO’s (SBOMs, vulnerability reports, and policy evidence)
- How to streamline operations with automated policy checks on container images
Why You Should Replace Windows 11 with Nitrux Linux 3.5.0 for enhanced perfor...SOFTTECHHUB
The choice of an operating system plays a pivotal role in shaping our computing experience. For decades, Microsoft's Windows has dominated the market, offering a familiar and widely adopted platform for personal and professional use. However, as technological advancements continue to push the boundaries of innovation, alternative operating systems have emerged, challenging the status quo and offering users a fresh perspective on computing.
One such alternative that has garnered significant attention and acclaim is Nitrux Linux 3.5.0, a sleek, powerful, and user-friendly Linux distribution that promises to redefine the way we interact with our devices. With its focus on performance, security, and customization, Nitrux Linux presents a compelling case for those seeking to break free from the constraints of proprietary software and embrace the freedom and flexibility of open-source computing.
Unlocking Productivity: Leveraging the Potential of Copilot in Microsoft 365, a presentation by Christoforos Vlachos, Senior Solutions Manager – Modern Workplace, Uni Systems
Threats to mobile devices are more prevalent and increasing in scope and complexity. Users of mobile devices desire to take full advantage of the features
available on those devices, but many of the features provide convenience and capability but sacrifice security. This best practices guide outlines steps the users can take to better protect personal devices and information.
GraphSummit Singapore | The Art of the Possible with Graph - Q2 2024Neo4j
Neha Bajwa, Vice President of Product Marketing, Neo4j
Join us as we explore breakthrough innovations enabled by interconnected data and AI. Discover firsthand how organizations use relationships in data to uncover contextual insights and solve our most pressing challenges – from optimizing supply chains, detecting fraud, and improving customer experiences to accelerating drug discoveries.
Sudheer Mechineni, Head of Application Frameworks, Standard Chartered Bank
Discover how Standard Chartered Bank harnessed the power of Neo4j to transform complex data access challenges into a dynamic, scalable graph database solution. This keynote will cover their journey from initial adoption to deploying a fully automated, enterprise-grade causal cluster, highlighting key strategies for modelling organisational changes and ensuring robust disaster recovery. Learn how these innovations have not only enhanced Standard Chartered Bank’s data infrastructure but also positioned them as pioneers in the banking sector’s adoption of graph technology.
In Chapter 2, we discuss what a computer does and how its functions make it such a useful machine.
Files and applications can be quite large, containing thousands or millions of bytes.To make it easier to measure the size of these files, we need units of measure larger than a byte. Kilobytes, megabytes, and gigabytes are therefore simply larger bytes. As shown in this table, a kilobyte (KB)is approximately 1,000 bytes, a megabyte (MB)is about 1 million bytes, and a gigabyte (GB)is around 1 billion bytes. Many business computers can store up to a petabyte of data.
The mouse type you’re probably most familiar with is the optical mouse. An optical mouse uses an internal sensor or laser to detect the mouse’s movement. The sensor sends signals to the computer, telling it where to move the pointer on the screen. Optical mice don’t require a mouse pad, although you can use one to enhance the movement of the mouse on an uneven surface, or to protect your work surface from being scratched. Wireless mice are similar to wireless keyboards in that they use batteries and send data to the computer by radio frequency or Bluetooth technologies.Apple has developed Magic Mouse, the first multitouch wireless mouse. The top surface of the mouse is the button. Use your finger to scroll in any direction, swipe your fingers across the mouse to move through web pages and photos, and tap on the mouse to click and double-click.
Most laptops have an integrated pointing device such as a touch pad (or trackpad), a small, touch-sensitive area at the base of the keyboard. Some laptops incorporate a trackpoint device, a small, joystick-like nub that allows you to move the cursor with the tip of your finger.
A touch screen is a display screen that responds to commands initiated by a touch with a finger or a stylus. Touch screens are becoming the norm on many computing devices, especially smartphones such as the Droid and iPhone, and tablet computers such as the iPad and Samsung Galaxy Tab. Tablets and other touch-screen devices use a virtual keyboard that displays on screen when text input is required. These keyboards show basic keyboard configurations, and use special keys to switch to numeric, punctuation, and other keys.
Digital cameras, camcorders, and cell phones are common devices for capturing pictures and video, and all of them are considered input devices. Scanners can also input images. They work similarly to a photocopy machine, but instead of generating the image on paper, they create a digital image, which you can print, scan, or e-mail.A webcam is a small camera that sits on top of a computer monitor (connected to the computer by a cable) or is built into a laptop or tablet computer. Although webcams are able to capture still images, they’re used mostly for capturing and transmitting live video. Videoconferencing technology lets a person using a computer equipped with a webcam and a microphone transmit video and audio across the Internet.
Closetalk microphones, which are usually attached to a headset, facilitate using speech-recognition software, videoconferencing, or making telephone calls. With a microphone attached to a headset, your hands are free to perform other tasks while you speak, such as making notes or referring to paper documents, and the headset allows you to listen as well.Omnidirectional microphones pick up sounds from all directions at once. These mics are best for recording more than one voice, such as during a conference call when you need to pick up the voices of multiple speakers.Unidirectional microphones pick up sound from only one direction. These are best used for recording podcasts with a single voice or making phone calls over the Internet with only one person on the sender’s end of the call. Clip-on microphones (also called lavalier microphones) are useful in environments such as presentations, where you need to keep your hands free for other activities (such as writing on a whiteboard) or move around the room. Many of these microphones are wireless.
Wireless printing allows you to print without the restriction of wires. Wireless printers let several people print to the same printer from different places.There are two types of wireless printers: WiFi and Bluetooth. Both WiFi and Bluetooth printers have a range of up to approximately 300 feet. WiFi sends data more quickly than Bluetooth.Wireless printers are also great for printing from portable devices. If you’re using a device running Apple’s iOS (such as an iPhone), AirPrint makes printing easy. AirPrint is a feature of iOS that facilitates printing to AirPrint-compatible wireless printers.
An all-in-one printercombines the functions of a printer, scanner, copier, and fax into one machine. Popular for their space-saving convenience, all-in-one printers can use either inkjet or laser technology.A plotter prints oversize pictures that require the drawing of precise and continuous lines, such as maps and architectural plans. Plotters use a computer-controlled pen that provides a greater level of precision than the series of dots that laser or inkjet printers make.A thermal printerworks by either by melting wax-based ink onto ordinary paper (a process called thermal wax transfer printing) or by burning dots onto specially coated paper (a process called direct thermal printing). They are used in stores to print receipts and in airports for electronic ticketing and many models feature wireless technology. Thermal printers are also popular for mobile printing in conjunction with smartphones and similar devices.
Most computers include inexpensive speakers, which are the output devices for sound. These speakers are sufficient to play the standard audio clips you find on the web and usually enable you to participate in videoconferencing or phone calls made over the Internet. However, if you plan to digitally edit audio files or are particular about how your music sounds, then you might want a more sophisticated speaker system, such as one that includes subwoofers (special speakers that produce only low bass sounds) and surround-sound speakers. A surround-sound speaker is a system of speakers and audio processing that envelops the listener in a 360-degree field of sound. Wireless speaker systems are available to help you avoid cluttering up your rooms with speaker wires. If you work in close proximity to other employees or travel with a laptop, you might need to use headphones or earbuds for your sound output to avoid distracting other people. Both devices plug into the same jack on the computer to which speakers connect. Studies of users of portable media players have shown that hearing might be damaged by excessive volume, especially when using earbuds, because they fit into the ear canals. Exercise caution when using these devices.
Random access memory (RAM)is the place in a computer where the programs and data the computer is currently using are stored. RAM is much faster to read from and write to than the hard drive and other forms of storage. Because the entire contents of RAM are erased when you turn off the computer, RAM is the temporary or volatile storage location. To save data more permanently, you need to save it to the hard drive or to another permanent storage device such as a CD or flash drive.Read-only memory (ROM) holds all the instructions the computer needs to start up when it is powered on. The instructions stored in ROM are permanent, making ROM a nonvolatile storage location, which means the data isn’t erased when the power is turned off.
For large portable storage needs, there are portable external hard drives, which are small enough to fit into your pocket and have storage capacities of 4 TB (or larger). These devices are small and lightweight and are enclosed in a protective case. They attach to your computer via the USB port. Most of these portable external hard drives do not use solid-state technology, so care should be taken when transporting them.
We have discussed peripheral devices that input, store, and output data and information. A port is a place through which a peripheral device attaches to the computer so that data can be exchanged between it and the operating system. Although many ports are located on the back of computers, some commonly used ports are placed on the front and sides for easier access when connecting devices such as flash drives or digital and video cameras.
A universal serial bus (USB) portis the port type most commonly used to connect input and output devices to the computer. This is mainly because of a USB port’s ability to transfer data quickly. USB 2.0 ports are the current standard and transfer data at 480 megabits per second (Mbps).The new USB 3.0 standard provides transfer speeds of 4.8 Gbps and charges devices faster than its predecessor. USB 3.0 is quickly becoming the port of choice.
You might also see other ports, such as FireWire 400 and FireWire 800. The FireWire 400 interface moves data at 400 Mbps, whereas the FireWire 800 doubles the rate to 800 Mbps. Devices such as external hard drives, digital video cameras, portable music players, and digital media players all benefit from the speedy data transfer capabilities of FireWire. The FireWire 3200 standard, with data transfer rates of 3.2 Gbps, has been ratified but has yet to reach the market.
Another set of ports on your computer helps you communicate with other computers. A connectivity port can give you access to networks and the Internet. To find a connectivity port, look for a port that resembles a standard phone jack but is slightly larger. This port is called an Ethernet port. Ethernet ports transfer data at speeds up to 10,000 Mbps. You can use an Ethernet port to connect your computer to a digital subscriber line (DSL) or cable modem, or a network. Some computers still feature a second connectivity port that will accept a standard phone line connector. This jack is the modem port. It uses a traditional telephone signal to connect to the Internet over a phone line.Other ports on the back and sides of the computer include the audio and video ports. Audio ports are where you connect headphones, microphones, and speakers to the computer. A video port is needed to attach a monitor to a desktop computer or a second, larger display to a laptop computer. The video graphics array (VGA) port is the port to which older LCD monitors connect.
Another set of ports on your computer helps you communicate with other computers. A connectivity port can give you access to networks and the Internet. To find a connectivity port, look for a port that resembles a standard phone jack but is slightly larger. This port is called an Ethernet port. Ethernet ports transfer data at speeds up to 10,000 Mbps. You can use an Ethernet port to connect your computer to a digital subscriber line (DSL) or cable modem, or a network. Some computers still feature a second connectivity port that will accept a standard phone line connector. This jack is the modem port. It uses a traditional telephone signal to connect to the Internet over a phone line.Other ports on the back and sides of the computer include the audio and video ports. Audio ports are where you connect headphones, microphones, and speakers to the computer. A video port is needed to attach a monitor to a desktop computer or a second, larger display to a laptop computer. The video graphics array (VGA) port is the port to which older LCD monitors connect.
Newer LCD monitors, as well as other multimedia devices such as televisions, DVD players, and projectors, connect to digital video interface (DVI) ports.The latest digital connector designed for use in HD home theater environments is a high-definition multimedia interface (HDMI), a compact audio-video interface that carries both HD video and uncompressed digital audio on one cable.
In Windows 8, the main method of power management is Sleep. When your computer enters Sleep Mode, all of the documents, applications, and data you were using remain in RAM (memory), where they’re quickly accessible when you restart your computer.Hibernate option is similar to Sleep except that your data is stored on your hard drive instead of in RAM and your computer is powered off. This uses much less battery power than Sleep and is a good choice if you won’t be using your laptop for a long time and won’t have the opportunity to charge it.Restarting the system while it’s powered on is called a warm boot. You might need to perform a warm boot if the operating system or other software application stops responding or if you’ve installed new programs.