Questions and Answers on Information and Communication Technology

Answers by Awuriki Simon (Questions referenced from Mr. Nelson Soh ICT Book)

Page 1: Self Assessment Questions

1. Fill in the blanks

a) Name a component on the motherboard: CPU or RAM

b) System Unit is the metal case that houses the processing hardware of the computer. System Unit

c) Another name for the system unit is Chassis

d) The power button is located on the System Unit or Chassis

e) The system unit houses the electronic components of the computer

f) Another name for the motherboard is Mainboard or System board

h) Port provides plug and play for cables that lead to a device

i) A connecting socket located on the system chassis is known as a Port

j) The name given to the main circuit board in the system unit is the Motherboard

2. True or False

a) The system unit is also known as Processor: False

b) Chassis is another name for motherboard: False

c) Only few computers have a system unit: False

Short Answer Questions

a) System unit: The main body of a desktop computer that houses the main internal parts, like the motherboard and hard drive.

b) Motherboard: The main circuit board in a computer that all other components connect to. It's like the nervous system of the computer.

c) Power supply: A component that converts electricity from the wall socket into the power that the computer parts need to work.

Identify components of the motherboard: CPU chip, RAM slots, expansion slots, ports, and connectors

Explain functions of the system unit: It houses and protects all internal components and provides the frame for connecting external devices.

Label parts of the system unit: Expansion Cards, Power Supply, Zip Drive, Hard Disk Drive, Floppy Drive, RAM, Motherboard, CD/DVD Drive, Expansion Slots, CPU Chip

Page 2: Self Assessment Questions & Section A

a) Audio output: Sound or music produced by a computer, heard through speakers or headphones.

b) Video output: Visual information like images, videos, and text displayed on a screen.

Audio output devices (3): Speakers, headphones, earphones

Device for both input and output of audio: Headset with a microphone

Fill in the blanks

1. LCD stands for Liquid Crystal Display

2. The two main display technologies are LCD and CRT

3. To obtain multiple copies from one print you need an impact printer

4. An example of a page printer is the Laser printer

5. The TV-like component of the computer is called the Monitor

6. The short form of picture element is Pixel

7. The most widely used means of output are the Monitor and Printer

8. Data that has been processed into useful form is called Information

9. Another name for hardcopy is Printout

10. An output device translates machine-readable data into human-readable form

Page 3: True or False, Matching & Section B

True or False

11. Daisy wheel printer is a non-impact printer: False

12. Speed of modern printers is measured in ppm: True

13. Thermal printers can print on any ordinary paper: False

14. Dots per inch define resolution: True

15. An individual dot on a screen is called screen point: False

16. Printer resolution is measured by pixels per inch: False

17. CRT stands for Cathode Ray Tube

18. All monitors are touch screens: False

19. Information on a display is sometimes called soft copy: True

20. A printout in landscape is taller than wide: False

Matching

• A printer that produces high-quality output by moving pens: Plotter
• Output viewable on a monitor or speakers: Soft copy
• Measurement for resolution of printer: DPI
• Monitor similar to TV: CRT
• Monitor using LCD: LCD monitor
• Visible light intensity unit: Nit
• Standard unit of luminous intensity: Candela
• Distance between pixels: Dot pitch
• Forms characters without striking paper: Non-impact printer
• Printed permanent output: Hardcopy

Section B

31. Soft copy to a pupil: It’s like a ghost document you can see on screen or hear, but not touch. Example: a picture on phone or a song.

32. Output device with five examples: A device that shows results of computer processing. Examples: Monitor, Printer, Speakers, Headphones, Projector.

33. Computer display monitor: A screen that shows what the computer is doing. Useful for viewing pictures, text, and videos. Types include LCD and CRT, sizes from 19 inches upwards.

34. Impact vs Non-impact printers: Impact printers strike paper to make marks (like a typewriter). Non-impact printers use ink or heat without striking. Examples of impact printers: Dot-matrix, Daisy-wheel, Line printer.