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?
A computer cannot work for long periods without getting tired.
False
The process of getting stored data back when you need it is called ______.
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What does 'input' refer to in computer terms?
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List two disadvantages of using computers.
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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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Description
Learn about the basic functions and characteristics of computers, including speed, accuracy, and storage capacity.
