This is a grade 10 activity for Computer Application Technology

1. Computer
Application
Technology
GRADE 10

2. General Model of a computer
 Hardware refers to the physical components of a computer that you can
see and touch, such as keyboard, mouse, printer and monitor.
 A basic computer has five types of hardware- input, processing, output,
storage and communication components.

3. Multi-purpose devices and Dedicated
devices

4. Multi-purpose devices
 A multi-purpose computer is designed to perform many different tasks.
 A personal computer (PC) is a small computer that perform all its own
input, processing, output and storage, and is designed to be used by an
individual user.

5. Dedicated devices
 A dedicated device is built or programmed to only a specific procedure.
 These devices and appliances have microprocessor chips found in them.

6. Hardware and Software
 Hardware – It refers to the physical components of the computer
which you can see and touch.
Examples include: keyboard, mouse, printer and monitor.
 Software- It is a set of instructions that tells the computer and its
devices what to do.
Examples include: Microsoft office and windows media player.
 Hardware cannot function without software.

7. Hardware and Software

8. Main hardware components of the
computer

9. Input devices
 They are use to enter data into the computer system.

10. Processing
 It is also known as the central processing unit (CPU), the brain of the
computer.
 It is responsible for performing operations on the input to produce output
in a systematic manner.

11. Output devices
 They convey information to they user and must be presented in the
required format of the user.

12. Storage devices
 Storage holds data, information and instructions permanently.

13. Communication
 This device is used to send and receive data and information from one or
more computers or mobile devices

14. Activity
 Socrative room code:
JKXKNWMDK