Computer Hardware Components
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Questions and Answers

Match the following components of a computer with their definitions:

Electronic device = Collection of unprocessed items Memory = Conveys meaning and is useful to people Instructions = Accepts data according to specified rules Data = Operating under the control of instructions

Match the following stages of the information processing cycle with their descriptions:

Input = Produces results Process = Accepts data Output = Conveys meaning and is useful to people Storage = Transforms data into information

Match the following types of computers with their characteristics:

Desktop = Portable and can be carried in a pocket Laptop = Designed for heavy use in a fixed location Mainframe = Used for personal use Supercomputer = Used for complex calculations and simulations

Match the following advantages of computers with their descriptions:

<p>Speed = Ability to perform tasks more efficiently Accuracy = Ability to store large amounts of data Capacity = Ability to automate repetitive tasks Reliability = Ability to process information quickly</p> Signup and view all the answers

Match the following disadvantages of computers with their descriptions:

<p>Health risks = Dependence on technology leading to social isolation Job displacement = Physical harm caused by prolonged use Environmental impact = Loss of jobs due to automation Dependence on technology = E-waste and energy consumption</p> Signup and view all the answers

Match the following components of a computer system with their roles:

<p>Input device = Stores data and programs Central processing unit = Accepts data from the user Memory = Executes instructions and performs calculations Output device = Displays the results of processing</p> Signup and view all the answers

Match the following types of computer systems with their characteristics:

<p>Open system = Proprietary and controlled by a single company Closed system = Open-source and accessible to the public Real-time system = Used for critical applications requiring immediate response Distributed system = Decentralized and consisting of multiple computers</p> Signup and view all the answers

Match the following stages of data processing with their descriptions:

<p>Collection = Transforming data into a useful format Processing = Storing data for future use Storage = Gathering data from various sources Output = Producing the results of processing</p> Signup and view all the answers

Match the following computer hardware components with their functions:

<p>CPU = Temporary storage of data and instructions RAM = Permanent storage of data and programs Hard drive = Execution of instructions and calculations Motherboard = Connection of hardware components</p> Signup and view all the answers

Match the following characteristics of computer literacy with their descriptions:

<p>Basic knowledge = Understanding of computer systems and applications Current knowledge = Awareness of the latest developments in technology Understanding of uses = Ability to use computers effectively Digital literacy = Awareness of the impact of technology on society</p> Signup and view all the answers

Study Notes

  • The Components of Computer

    • A computer consists of electrical, electronic, and mechanical components known as hardware.
    • Input Device: allows users to enter data and instructions into a computer.
    • Output Device: conveys information to one or more people.
    • System Unit: contains the electronic components that process data.
    • Storage Device: holds data, instructions, and information for future use.
    • Communications Device: enables a computer to send and receive data, instructions, and information to and from one or more computers or mobile devices.

    Advantages and Disadvantages of Using Computers

    • Advantages:
      • Ability to perform the information processing cycle with amazing speed
      • Reliability (low failure rate)
      • Accuracy and consistency
      • Ability to store a huge amount of data and information
      • Ability to communicate with other computers and devices
    • Disadvantages:
      • Violation of privacy
      • Public safety risks
      • Impact on labor force
      • Health risks
      • Impact on the environment

    Categories of Computer

    • Personal Computers (desktop)
    • Mobile Computers and Mobile Devices
    • Game Consoles
    • Servers
    • Mainframes
    • Supercomputers
    • Embedded Computers

    Personal Computers

    • Two most popular styles of personal computers: PC and compatibles (use Windows operating system), Apple Macintosh (uses Macintosh operating system)
    • A desktop computer is designed to fit entirely on or under a desk or table.

    Mobile Computers and Mobile Devices

    • Notebook Computer: portable, small enough to fit on your lap, also called a laptop computer, usually more expensive than a desktop computer with equal capabilities.
    • Netbook: a type of notebook computer, smaller, lighter, often not as powerful as traditional notebook computers, suitable for word processing, running a Web browser, and connecting wirelessly to the Internet.
    • Tablet PC: resembles a letter-sized slate, allows you to write on the screen using a digital pen, especially useful for taking notes.
    • Mobile Devices: small, Internet-enabled telephones, also known as smartphones.

    Game Consoles

    • Mobile computing device designed for single-player or multiplayer video games.

    Servers, Mainframe, Supercomputer

    • Server: controls access to network resources and provides centralized storage.
    • Mainframe: very powerful, expensive computer that supports thousands of connected users.
    • Supercomputer: the fastest, most powerful, most expensive computer, used for applications requiring complex mathematical calculations and data analysis.

    Embedded Computers

    • Special-purpose computer that functions as a component in a larger product.

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Description

Learn about the different parts of a computer, including input devices, output devices, system units, and storage devices. Understand the functions of each component and how they work together to process data.

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