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A school bought a computer system. The hardware items supplied include: a 800 MHz processor, 64 MB of RAM, a sound card, speakers, a monitor,...

A school bought a computer system. The hardware items supplied include: a 800 MHz processor, 64 MB of RAM, a sound card, speakers, a monitor, a keyboard, a 120 GB hard disk, a floppy disk drive, a CD – Read/ write drive, a mouse, a modem, an inkjet printer and a joystick.
The software supplied include: an operating system, a BASIC interpreter and the following packages: spreadsheets, graphics, word processor, art, database and games

(a) List three input devices from the given specifications

(b) Explain the meaning of the following
(i) 800 MHZ
(ii) 64 MB of RAM
(iii) 120 GB hard disk

(c) Some of the students in the school use the computer to do homework. Name the package used to:
(i) Do calculations and draw graphs
(ii) Write an essay
(iii) Make a poster

(d) Students enjoy playing noisy computer games
(i) Which two hardware items are needed to produce sound?
(ii) Which input device is only used for playing games?

Answers

Kavungya
(a) List three input devices from the given specifications
- Keyboard
- Mouse
- Joystick

(b) Explain the meaning of the following
(i) 800 MHZ
- 800 megahertz/ 800 million hertz
- It's the processing speed of the CPU in Megahertz
- It means that, the system cock has a speed of 800 million oscillations per second

(ii) 64 MB of RAM
This is a measure of the storage capacity of the primary memory/ Random access Memory (RAM) in megabytes.

(iii) 120 GB hard disk
- This is the measure of the hard disk storage capacity in gigabytes
- 120 Gigabytes

(c) Some of the students in the school use the computer to do homework. Name the
package used to:
(i) Do calculations and draw graphs - Spreadsheets
(ii) Write an essay - Word processor
(iii) Make a poster - Art

(d) Students enjoy playing noisy computer games
(i) Which two hardware items are needed to produce sound?
- Sound card
- Speakers

(ii) Which input device is only used for playing games?
Joystick
Kavungya answered the question on June 5, 2019 at 09:29

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