Theory question 104
Computers in CommerceThe diagrams below are computer devices.
[Figure: devices labelled A to I]
(a) Name any eight of the computer devices labelled A – I.
(b) State one use of any six input devices named in 4(a).
Show the model answer
(a) Any eight: A – speakers; B – microphone; C – web camera (webcam); D – flash drive (USB stick); E – monitor; F – printer; G – keyboard; H – light (optical) pen; I – joystick.
(b) Any six input devices, one use each:
- Microphone: records or inputs sound/voice.
- Webcam: captures pictures and video, e.g. for video calls.
- Keyboard: types letters, numbers and commands.
- Light pen: points at or draws on the screen / reads special characters.
- Joystick: controls movement of the cursor or objects, especially in games.
- Flash drive (as a storage/input medium): brings files into the computer from another computer.
(Mouse and scanner are also input devices but are not shown.)
Speakers, monitor and printer are output devices; the flash drive is a storage device.