overview:-
This chapter covers:
What computers are, how they work, and how they are used
Computer terminology
An overview of the history of computers
The basic types of computers in use today
How to access resources on the Internet
Societal impacts of computers
Why learn about computers?
Pervasive computing
Also known as ubiquitous computing
Computers have become an integral part of our lives
Basic computer literacy
Understanding what a computer is and how it works
This chapter covers:
- What computers are, how they work, and how they are used
- Computer terminology
- An overview of the history of computers
- The basic types of computers in use today
- An overview of networks and the Internet
- Societal impacts of computers
Objectives
- Explain what e-commerce is and describe some of the advantages and disadvantages involved with implementing e-commerce.
- Identify a variety of e-commerce business models and discuss their differences.
- Discuss the types of Web sites that can be used to implement e-commerce.
- List several strategies for implementing e-commerce using the Web, including some of the decisions that need to be made, the options available for accepting payments, and the process of designing and developing an effective Web site.
- Outline some sales and marketing strategies that can be used in conjunction with an e-commerce Web site.
- Discuss some security issues related to e-commerce sites.
overview:-
This chapter covers:
What computers are, how they work, and how they are used
Computer terminology
An overview of the history of computers
The basic types of computers in use today
How to access resources on the Internet
Societal impacts of computers
Why learn about computers?
Pervasive computing
Also known as ubiquitous computing
Computers have become an integral part of our lives
Basic computer literacy
Understanding what a computer is and how it works
This chapter covers:
- What computers are, how they work, and how they are used
- Computer terminology
- An overview of the history of computers
- The basic types of computers in use today
- An overview of networks and the Internet
- Societal impacts of computers
Objectives
- Explain what e-commerce is and describe some of the advantages and disadvantages involved with implementing e-commerce.
- Identify a variety of e-commerce business models and discuss their differences.
- Discuss the types of Web sites that can be used to implement e-commerce.
- List several strategies for implementing e-commerce using the Web, including some of the decisions that need to be made, the options available for accepting payments, and the process of designing and developing an effective Web site.
- Outline some sales and marketing strategies that can be used in conjunction with an e-commerce Web site.
- Discuss some security issues related to e-commerce sites.
This chapter covers:
- Different types of keyboards and pointing devices
- Types of scanners, readers, and digital cameras
- Audio input devices
- Types of display devices and how they work
- Types of printers and how they work
- Audio output
This chapter covers:
- How information systems are used and who uses them
- Common types of information systems
- Computer professionals who develop systems and their primary responsibilities
- The system development life cycle (SDLC)
- The major approaches to system development
Understanding Computers: Today and Tomorrow, 13th Edition Chapter 2 - The Sys...yaminohime
Objectives
- Understand how data and programs are represented to a computer and be able to identify a few of the coding systems used to accomplish this.
- Explain the functions of the hardware components commonly found inside the system unit, such as the CPU, memory, buses, and expansion cards.
- Describe how new peripheral devices or other hardware can be added to a computer.
- Understand how the computer system’s CPU and memory components process program instructions and data.
- Name and evaluate several strategies that can be used today for speeding up the operations of a computer.
- List some technologies that may be used in the future computers.
This chapter covers:
- Different types of keyboards and pointing devices
- Types of scanners, readers, and digital cameras
- Audio input devices
- Types of display devices and how they work
- Types of printers and how they work
- Audio output
This chapter covers:
- How information systems are used and who uses them
- Common types of information systems
- Computer professionals who develop systems and their primary responsibilities
- The system development life cycle (SDLC)
- The major approaches to system development
Understanding Computers: Today and Tomorrow, 13th Edition Chapter 2 - The Sys...yaminohime
Objectives
- Understand how data and programs are represented to a computer and be able to identify a few of the coding systems used to accomplish this.
- Explain the functions of the hardware components commonly found inside the system unit, such as the CPU, memory, buses, and expansion cards.
- Describe how new peripheral devices or other hardware can be added to a computer.
- Understand how the computer system’s CPU and memory components process program instructions and data.
- Name and evaluate several strategies that can be used today for speeding up the operations of a computer.
- List some technologies that may be used in the future computers.
ICT System Technology Presentation.pptxSahalCarrim
The following presentation is based on Information Communication Technology/Computer Application Technology topic, system technologies that focuses on hardware, software, input and output devices, computing processes, storage devices and additional related items.
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:
Elevating Tactical DDD Patterns Through Object CalisthenicsDorra BARTAGUIZ
After immersing yourself in the blue book and its red counterpart, attending DDD-focused conferences, and applying tactical patterns, you're left with a crucial question: How do I ensure my design is effective? Tactical patterns within Domain-Driven Design (DDD) serve as guiding principles for creating clear and manageable domain models. However, achieving success with these patterns requires additional guidance. Interestingly, we've observed that a set of constraints initially designed for training purposes remarkably aligns with effective pattern implementation, offering a more ‘mechanical’ approach. Let's explore together how Object Calisthenics can elevate the design of your tactical DDD patterns, offering concrete help for those venturing into DDD for the first time!
The Art of the Pitch: WordPress Relationships and SalesLaura Byrne
Clients don’t know what they don’t know. What web solutions are right for them? How does WordPress come into the picture? How do you make sure you understand scope and timeline? What do you do if sometime changes?
All these questions and more will be explored as we talk about matching clients’ needs with what your agency offers without pulling teeth or pulling your hair out. Practical tips, and strategies for successful relationship building that leads to closing the deal.
UiPath Test Automation using UiPath Test Suite series, part 4DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 4. In this session, we will cover Test Manager overview along with SAP heatmap.
The UiPath Test Manager overview with SAP heatmap webinar offers a concise yet comprehensive exploration of the role of a Test Manager within SAP environments, coupled with the utilization of heatmaps for effective testing strategies.
Participants will gain insights into the responsibilities, challenges, and best practices associated with test management in SAP projects. Additionally, the webinar delves into the significance of heatmaps as a visual aid for identifying testing priorities, areas of risk, and resource allocation within SAP landscapes. Through this session, attendees can expect to enhance their understanding of test management principles while learning practical approaches to optimize testing processes in SAP environments using heatmap visualization techniques
What will you get from this session?
1. Insights into SAP testing best practices
2. Heatmap utilization for testing
3. Optimization of testing processes
4. Demo
Topics covered:
Execution from the test manager
Orchestrator execution result
Defect reporting
SAP heatmap example with demo
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
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.
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.
Unlocking Productivity: Leveraging the Potential of Copilot in Microsoft 365, a presentation by Christoforos Vlachos, Senior Solutions Manager – Modern Workplace, Uni Systems
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.
Securing your Kubernetes cluster_ a step-by-step guide to success !KatiaHIMEUR1
Today, after several years of existence, an extremely active community and an ultra-dynamic ecosystem, Kubernetes has established itself as the de facto standard in container orchestration. Thanks to a wide range of managed services, it has never been so easy to set up a ready-to-use Kubernetes cluster.
However, this ease of use means that the subject of security in Kubernetes is often left for later, or even neglected. This exposes companies to significant risks.
In this talk, I'll show you step-by-step how to secure your Kubernetes cluster for greater peace of mind and reliability.
Removing Uninteresting Bytes in Software FuzzingAftab Hussain
Imagine a world where software fuzzing, the process of mutating bytes in test seeds to uncover hidden and erroneous program behaviors, becomes faster and more effective. A lot depends on the initial seeds, which can significantly dictate the trajectory of a fuzzing campaign, particularly in terms of how long it takes to uncover interesting behaviour in your code. We introduce DIAR, a technique designed to speedup fuzzing campaigns by pinpointing and eliminating those uninteresting bytes in the seeds. Picture this: instead of wasting valuable resources on meaningless mutations in large, bloated seeds, DIAR removes the unnecessary bytes, streamlining the entire process.
In this work, we equipped AFL, a popular fuzzer, with DIAR and examined two critical Linux libraries -- Libxml's xmllint, a tool for parsing xml documents, and Binutil's readelf, an essential debugging and security analysis command-line tool used to display detailed information about ELF (Executable and Linkable Format). Our preliminary results show that AFL+DIAR does not only discover new paths more quickly but also achieves higher coverage overall. This work thus showcases how starting with lean and optimized seeds can lead to faster, more comprehensive fuzzing campaigns -- and DIAR helps you find such seeds.
- These are slides of the talk given at IEEE International Conference on Software Testing Verification and Validation Workshop, ICSTW 2022.
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.
Epistemic Interaction - tuning interfaces to provide information for AI supportAlan Dix
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
Transcript: Selling digital books in 2024: Insights from industry leaders - T...BookNet Canada
The publishing industry has been selling digital audiobooks and ebooks for over a decade and has found its groove. What’s changed? What has stayed the same? Where do we go from here? Join a group of leading sales peers from across the industry for a conversation about the lessons learned since the popularization of digital books, best practices, digital book supply chain management, and more.
Link to video recording: https://bnctechforum.ca/sessions/selling-digital-books-in-2024-insights-from-industry-leaders/
Presented by BookNet Canada on May 28, 2024, with support from the Department of Canadian Heritage.
Climate Impact of Software Testing at Nordic Testing DaysKari Kakkonen
My slides at Nordic Testing Days 6.6.2024
Climate impact / sustainability of software testing discussed on the talk. ICT and testing must carry their part of global responsibility to help with the climat warming. We can minimize the carbon footprint but we can also have a carbon handprint, a positive impact on the climate. Quality characteristics can be added with sustainability, and then measured continuously. Test environments can be used less, and in smaller scale and on demand. Test techniques can be used in optimizing or minimizing number of tests. Test automation can be used to speed up testing.
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.
Encryption in Microsoft 365 - ExpertsLive Netherlands 2024
2. hardware, computer system & it's component
1. Hardware, Computer
System & Components
BY
NAJEEB SAFI
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NAJEEB SAFI
2. NAJEEB SAFI
Hardware
Hardware are the physical components that we can touch them
physically.
There are many types of hardware some of them are placed inside the
computer casing and some of them can be attached to the computer
from outside of the computer casing.
following is the short overview of the computer hardware's.
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3. NAJEEB SAFI
Hardware Components of Computer
There are five main hardware component of computer system.
1) Input hardware components
2) Processing hardware components
3) Storage hardware components
4) Output hardware components
5) Communication hardware components
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4. NAJEEB SAFI
1. Input Hardware Components
Input hardware devices are those devices through which we enter data to
the Central Processing Unit (CPU). They are classified according to
their way of working. Following are some input devices which are used
to enter data/instructions to the CPU.
Keyboard
Mouse
Scanner
Barcode Reader
Magnetic Ink Recognition
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Joystick
Touch Screen
Light Pen
Digital Camera
Microphone
5. NAJEEB SAFI
Keyboard
Keyboard is basic hardware to input data. Keyboard composed of
buttons which is used to for composing letters, documents and many
more objects relating to textual data.
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6. NAJEEB SAFI
Mouse
Mouse is known as pointing device which is used for pointing
something.
Mouse basically composed of two buttons (Left, Right) and wheeler
which is used for rolling document up and down.
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Gaming
Mouse
Common
Mouse
7. NAJEEB SAFI
Scanner
Scanner is an input device that scans documents such as photographs
and pages of text. It creates an electronic documents that can be edited
in computer.
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8. NAJEEB SAFI
Barcode Reader
Barcode Reader is an optical scanner that can read printed barcodes.
Decode the data contained in barcode and send data to computer.
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Barcode
Reader
Barcodes
9. NAJEEB SAFI
Magnetic Ink Recognition
Magnetic Ink Character Recognition Code, known in short MICR Code
is character recognition technology used mainly by the banking industry
to streamline the processing and clearance of cheques and other
documents.
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10. NAJEEB SAFI
Joystick
• Joystick is a pointing device with a
vertical lever mounted on a base.
• The lever usually have buttons called
triggers, which activate certain events
when pressed.
• Joystick is mainly used for computer
games.
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11. NAJEEB SAFI
Touch Screen
• Touch screen is touch sensitive display
input device.
• It is used for information kiosks located in
departments, stores, hotels, airports, and
museums.
• Touch screens are also used for ATM
machines to allow easy access of bank
accounts.
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12. NAJEEB SAFI
Light Pen
Light pen is a pointing device shaped like a
pen and is connected to a VDU (Video
Display Unit). The tip of the light pen
contains a light-sensitive element which,
when place against the screen, detects the
light from the screen enabling the computer
to identify the location of the pen on the
screen. Light pens are used for “drawing”
directly onto the screen.
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13. NAJEEB SAFI
Digital Camera
• A digital camera takes pictures and stores
the images digitally, rather than on
traditional film. Digital cameras use
different media to store images, which
include flash memory card, floppy disk,
compact disc, and micro drive. The
quality of a digital camera is determined
by its resolution and color depth.
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14. NAJEEB SAFI
Microphone
• A microphone is an input device used for
voice recording.
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15. NAJEEB SAFI
2. Processing Hardware Components
Basically processing hardware is Central Processing Unit (CPU) of
computer system. It process data according to our instructions.
Processing is a procedure that transforms raw data in to meaningful
information.
e.g., Central Processing Unit (CPU) Motherboard. Network Cards and
Register.
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16. NAJEEB SAFI
Central Processing Unit
• The processor or the central processing
unit (CPU) is the electronic device that
interprets and carries out the instructions
that tell the computer how to work.
• CPU is usually contained on a single chip
and is often called a microprocessor.
• CPU contains the control unit (CU), the
arithmetic and logic unit (ALU).
• CU directs and coordinates most of the
operations in the computer. For every
instruction, the CU repeats a set of four
basic operations called the machine cycle
or instruction cycle.
• ALU perform only mathematical and
logical operation.
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17. NAJEEB SAFI
Motherboard
• Motherboard or system-board is the main
circuit board in the system unit.
• Chips are attached to the motherboard e.g.
CPU and Memory Chip.
• Motherboard also contains expansion
slots into which other circuit boards can
be inserted for the expansion of the
computer system.
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18. NAJEEB SAFI
Network Card
A Network Interface Card is a hardware
component without which a computer
cannot be connected over a network.
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19. NAJEEB SAFI
3. Storage Hardware Components
Storage devices are refers to media on which we store data, instruction
or information. Storage are also known as backing storage or secondary
storage.
• Hard Disk
• Compact Disk
• Memory Card
• USB Flash Drive
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20. NAJEEB SAFI
Hard Drive
• Hard drive is a large backing storage
device. It consists of several inflexible,
circular disks, called platters. On which
items are stored electronically.
• The hard disk in most desktop inside the
system unit, and is considered fixed disks
because being not portable.
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21. NAJEEB SAFI
Compact Disk
• A compact disk (CD) is a flat, round,
portable, storage medium that is usually
4.75 inches in diameter and less than one-
twentieth of an inch thick.
• Compact discs store items by using laser
beam.
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22. NAJEEB SAFI
Memory Card
• Memory card is a small sized electronic
memory backing storage medium.
• When the card is inserted into a
specialized card reader, the information
on the card is read and, if necessary,
written.
• They are commonly used in many
electronic devices, including digital
cameras, mobile phones, laptop
computers, MP3 players, and video game
consoles.
• They can retain data without power.
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23. NAJEEB SAFI
USB Flash Drive
• A USB flash drive consist of a flash
memory data storage device integrated
with a USB (Universal Serial Bus)
interface.
• USB flash devices are removeable and
rewriteable, and physically much smaller
than other storage medium.
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24. NAJEEB SAFI
4. Output Hardware Component
Output devices are pieces of computer hardware that receive data
from computer CPU and then translate that data into another form.
That form may be audio, visual, textual, or hard copy such as printed
documents.
Output hardware components are those components that is used for
the purpose of output or for our response given by the CPU.
With the help of output devices we are able to see our result provided
by the computer CPU.
There are a lot of devices which is used for output devices, some of
them are discussed below.
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25. NAJEEB SAFI
Monitor
Monitor is an output device that
conveys text, graphics, and video
information to a user.
Information on monitor sometime
called a soft copy because it exists
electronically and displays only for a
temporary period.
Monitor can be monochrome or
color.
There are two main types of monitor.
CRT (Cathode Ray Tube)
LCD (Liquid Crystal Display)
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26. NAJEEB SAFI
Printer
A printer is an output device that
produces text and graphics on a
physical medium such as paper.
Printed information is often called
hard copy because the information
exists physically and is a more
permanent form of output than that
presented on display device.
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27. NAJEEB SAFI
Plotter
Plotter is a sophisticated printer used to
produce high-quality drawings that can
be quite large (e.g., with widths up to 60
inches).
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28. NAJEEB SAFI
Audio Output Device
• Audio output devices are the components
of computer that produce music, speech,
or other sounds.
• Two commonly used output devices are
speakers and headsets.
• Audio output devices are ideal for
visually impaired people.
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29. NAJEEB SAFI
Multimedia Projector
• Multimedia projector takes the image
from a computer and projects it onto a
larger screen so that people can see the
image clearly.
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30. NAJEEB SAFI
5. Communication hardware components
• Communication device is a hardware device capable of transmitting an
analogue or digital signal over the telephone, other communication
wire, or wirelessly.
• A classic example of communication device is a computer modem,
which converts computer digital’s information to an analog signals for
transmission over a telephone line. Similarly a modem receives
analogue signals, and convert them to digital, for processing by the
computer.
• So this process is known as modulation/demodulation, from which a
modem gets it’s name.
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31. NAJEEB SAFI
List Of Communication Devices.
Bluetooth Devices
Infrared Devices
Modem (over phone line)
Network Card (Using Ethernet)
Smartphone
Wi-Fi Devices (Using a Wi-Fi router)
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