Study Guide: Overview and Characteristics of Computers

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Exercises Key

1. Computer

An electronic device that operates under the control of a set of instructions that is stored in its memory unit. It accepts data from an input device and processes it into useful information, which it makes available on its output device.

2. Hardware

The physical components of the computer and any equipment connected to it.

3. Software

The set of instructions that the computer follows in performing a task.

4. Supercomputer

Classified by size, the largest classification of computers.

5. Mainframe

Classified by size, the second largest classification of computers.

6. Microcomputer

Personal computers or desktop computers.

7. Notebook Computer

A personal computer that can fit into a briefcase.

8. Laptop Computer

A larger, heavier version of a notebook computer.

9. Personal Digital Assistant

Classified by size, the smallest classification of computers. It is a handheld computer.