Introduction to Computers
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Questions and Answers

What is a computer?

A machine that can follow instructions to do many different tasks.

Which of these is NOT a characteristic of a computer?

  • Fast
  • Accurate
  • Diligent
  • Expensive (correct)
  • A computer cannot work for long periods without getting tired.

    False

    The process of getting stored data back when you need it is called ______.

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

    What does 'input' refer to in computer terms?

    <p>Putting data into the computer</p> Signup and view all the answers

    List two disadvantages of using computers.

    <p>Expensive, complex, health issues, dependence, security risks.</p> Signup and view all the answers

    Study Notes

    Introduction to Computers

    • A computer is a machine capable of following instructions to perform various tasks.
    • Functions include showing pictures, playing music, and solving math problems.

    Characteristics / Advantages of a Computer

    • Speed: Computers execute tasks very quickly.
    • Accuracy: They perform calculations and operations with minimal errors.
    • Storage: Ability to store large amounts of information for later use.
    • Diligence: Can operate consistently without fatigue or error.
    • Multitasking: Capable of executing multiple tasks simultaneously.

    Key Terms

    • Input: The process of entering data into the computer (e.g., typing or clicking).
    • Storage: The capability to retain data within the computer for future access.
    • Retrieve: Accessing and obtaining stored data when needed.
    • Output: The process of displaying results from the computer's operations (e.g., on a monitor or printer).
    • Data: Basic, unprocessed facts and figures, such as numbers and words.
    • Information: Data that has been processed and is useful, such as a report or image.

    Disadvantages of Computers

    • Cost: Computers can be expensive to purchase and maintain.
    • Complexity: Understanding and effectively using computers may be challenging for some users.
    • Health Issues: Prolonged use may lead to eye strain or encourage sedentary lifestyles.
    • Dependence: Over-reliance on computers can diminish problem-solving skills and practical abilities.
    • Security Risks: Improper protection of personal information can lead to theft or loss of data.

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    Related Documents

    Computer Lesson One PDF

    Description

    Learn about the basic functions and characteristics of computers, including speed, accuracy, and storage capacity.

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