Computer Systems Overview
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Questions and Answers

What are the three basic operations of a computer?

  • Input, Output, Transfer
  • Input, Store, Retrieve
  • Process, Output, Store
  • Input, Process, Output (correct)

    • Which component is NOT part of the constituents of a computer system?

  • Human ware
  • Software
  • Network Protocols (correct)
  • CPU

    • What characteristic of computers allows them to perform tasks quickly?

  • Multitasking
  • Speed (correct)
  • Storage Capacity
  • Versatility

    • Which of the following statements best defines a computer system?

    <p>A computer system is a functional unit of interconnected parts working together.</p> Signup and view all the answers

    Which of the following is NOT an operation of data processing?

    <p>Feedback</p> Signup and view all the answers

    What does 'Human ware' refer to in a computer system?

    <p>Users and operators of the system</p> Signup and view all the answers

    What aspect of computers allows them to process data in real-time?

    <p>Electronic signals</p> Signup and view all the answers

    Which of the following best describes the CPU's role in a computer system?

    <p>Processes instructions and data</p> Signup and view all the answers

    What is the primary function of system software?

    <p>To manage the computer's hardware and operations</p> Signup and view all the answers

    Which of the following is NOT a type of system software?

    <p>Application Software</p> Signup and view all the answers

    Which example demonstrates utility software?

    <p>Disk defragmenter</p> Signup and view all the answers

    What role do device drivers play in system software?

    <p>They operate and control specific hardware devices</p> Signup and view all the answers

    How do translators function in the context of system software?

    <p>They convert high-level programming languages to machine language</p> Signup and view all the answers

    Which of the following best describes application software?

    <p>Programs designed to perform specific tasks for the user</p> Signup and view all the answers

    What characteristic distinguishes system software from application software?

    <p>System software interacts more closely with hardware</p> Signup and view all the answers

    Which of the following is an example of an operating system?

    <p>Android OS</p> Signup and view all the answers

    Which type of keyboard was specifically designed to slow down typists?

    <p>Qwerty Keyboard</p> Signup and view all the answers

    What is the primary function of the function keys on a keyboard?

    <p>To perform special commands</p> Signup and view all the answers

    Which keyboard layout is commonly used in French-speaking countries?

    <p>Azerty</p> Signup and view all the answers

    What was John Napier known for inventing?

    <p>The decimal point and logarithms</p> Signup and view all the answers

    Which arrangement on the keyboard includes the most commonly used letters?

    <p>Dvorak</p> Signup and view all the answers

    What principle did Napier's bones primarily utilize?

    <p>Logarithms</p> Signup and view all the answers

    How are the keys on a keyboard generally categorized?

    <p>By their purpose and layout</p> Signup and view all the answers

    Which machine is considered the first calculating device according to historical context?

    <p>Pascal's Calculator</p> Signup and view all the answers

    What is the standard arrangement of letters on a keyboard known as?

    <p>Qwerty Layout</p> Signup and view all the answers

    What challenge did the ratchet mechanism of Pascal's calculator face?

    <p>It prevented subtraction from being done elegantly</p> Signup and view all the answers

    What does the numerical keypad on a keyboard primarily facilitate?

    <p>Performing mathematical calculations</p> Signup and view all the answers

    What was the primary function of the Leibniz Multiplier, also known as the Stepped Reckoner?

    <p>To execute all four arithmetic operations</p> Signup and view all the answers

    What type of keyboard typically has more advanced features compared to a standard keyboard?

    <p>Enhanced Keyboard</p> Signup and view all the answers

    What type of device were machines like Pascal's calculator primarily considered?

    <p>Adding machines</p> Signup and view all the answers

    Which feature distinguished Napier's bones from more modern calculating devices?

    <p>The reliance on physical rods for calculations</p> Signup and view all the answers

    What was the primary motivation behind Pascal inventing his calculator?

    <p>To assist his father in tax collection</p> Signup and view all the answers

    What is the main purpose of antivirus software?

    <p>To stop the effects of viruses on the computer system</p> Signup and view all the answers

    Which of the following is NOT a recommended computer virus prevention tip?

    <p>Ignoring software updates</p> Signup and view all the answers

    What does on-demand scanning refer to?

    <p>Manually initiating a scan of files or the system for security threats</p> Signup and view all the answers

    Which of the following is an example of a potential source of a computer virus?

    <p>Infected external storage media</p> Signup and view all the answers

    What is one of the effects of a computer virus?

    <p>Slowed computer response time</p> Signup and view all the answers

    What is real-time scanning also known as?

    <p>Background scanning</p> Signup and view all the answers

    Which antivirus example is known for providing security services alongside a firewall?

    <p>Kaspersky</p> Signup and view all the answers

    What action can be taken to help correct a computer threat?

    <p>Running an antivirus scan regularly</p> Signup and view all the answers

    Study Notes

    Computer Systems

    • A computer system is made up of interconnected parts working together to achieve a common output.
    • Consists of hardware, software, and humanware.

    Hardware - The physical components of a computer system.

    • Examples include:
      • CPU (Central Processing Unit): The brain of the computer, responsible for processing data.
      • Memory: Stores data and instructions temporarily.
      • Input Devices: Allow users to interact with the computer system.
      • Output Devices: Display processed data.

    Software - The set of instructions that tell the hardware what to do.

    • Two main types of software:
      • System Software: Manages the computer system itself. Examples include:
        • Operating systems (e.g., Windows, macOS, Linux).
        • Device drivers: Control specific peripherals.
        • Utility software: Helps analyze, configure, or maintain the computer system.
      • Application Software: Performs specific tasks for the user. Examples include:
        • Word processors (e.g., Microsoft Word, Google Docs).
        • Spreadsheets (e.g., Microsoft Excel, Google Sheets).
        • Games.

    Characteristics of Computer Systems

    • Speed: Computers operate at extremely high speeds because they use electronic signals that travel at the speed of light.
    • Accuracy: Computers are able to produce accurate results.
    • Versatility: Computers can be used for a wide variety of tasks.
    • Diligence: Computers can work continuously without getting tired.
    • Storage: Computers can store large amounts of data.

    Input Devices

    • Keyboards : Used to input text and commands, come in various layouts (QWERTY, AZERTY, DVORAK).
    • Mice: Used to control a cursor on the screen, enabling navigation and selection.
    • Scanners: Input images or documents into the computer system.
    • Microphones: Used to record audio.
    • Other Examples: Card readers, light pens, digital cameras.

    Computer Viruses

    • Malicious software that can harm a computer system.
    • Sources of Viruses:
      • Infected external storage media.
      • Network connections.
      • The Internet.
    • Effects of Viruses:
      • Slow computer performance.
      • Display unfamiliar text.
      • Clog network connections.
      • Impair data storage.
      • Disrupt booting processes.
      • Damage installed programs.

    Computer Antivirus Software

    • Designed to protect computer systems from viruses.

    • Functions:

      • Scan for viruses.
      • Quarantine infected files.
      • Remove viruses.

    • Types of Scans:

      • On-demand scanning: Manually initiated by the user.
      • On-access scanning: Continuously monitors for threats.

    • Examples of Antivirus Software:

      • Dr. Solomon tool kit.
      • Smadav.
      • AVG.
      • C.A Antivirus.
      • Norton.
      • Sophos.
      • F-secure.
      • Avira.
      • Eset.
      • E-scan.
      • Komodo.
      • Kaspersky.

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    Computer Studies SS1 First Term PDF

    Description

    This quiz covers the fundamental concepts of computer systems, including hardware, software, and the roles of each component. Understand the differences between system software and application software, along with examples of each. Perfect for beginners looking to grasp the basics of computing.

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