TECHNOLOGY SECONDARY FORM ONE

UNIT 1: COMPUTER AND ITS COMPONENTS

Lesson 3: Computer Component

Questions:

1. Can you upgrade and existing computer`s processor?
2. What are the two components contained in the processor?
3. Which type of storage device can be used by schools?
4. What does ROM stand for and what does it do?
5. What does RAM stand for and what does it do?
6. Discuss in class now how much memory would be appropriate for our computer based on your current computing needs?
7.  Define the terms, input and output?
8.   List several types of input and output devices?
9.  Describe the purpose of a pointing device. Give an example.
10. Describe the following input devices: Touchpad, Microphone and Scanner?
11. If you have a paper photograph that you want to send as an email, which device would you use?

Lesson 3 Answers:

• 1   Yes, I can upgrade.
• 2. CPU and Memory.
• 3  It can be used External Storage Device.
• 4. ROM stand for: Read Only Memory. ROM is useful for storing software that is rarely changed during the life of the system, also known as firmware. Software applications (like video games) for programmable devices can be distributed as plug-in cartridges containing ROM.
• 5. RAM stand for: Random Access Memory. Refers to memory that can be selected and used randomly the information stored here disappears the very moment the machine is turned off. It also referred to as a volatile memory.
• 6.  Primary and Secondary memory.
• 7. Input device: is any hardware component that allows you to enter data and instruction into a computer.                                                                                       
• Output device: is any hardware component that conveys information from a computer to one or more people.

8

	Input device	Output device
	Keyboards	Printers
	Scanners	Speakers
	Mouse	Monitors
	Touchpad	Projector
	Touch screen	Sound Card
	Microphones	Video Card
	Digital Camera

 

• 9. The purpose of Pointing device is to allow users to control a small symbol on a screen. Example: mouse, touchpad.
• 10. Touchpad: are used as a pointing device in many laptop, computers. the pointer controlled by the user moving their finger on the touchpad.               
•         Microphone: is an input device that enables you to speak into computer or mobile device.                                                                                                           
•        Scanners: are used to enter information from hard copy into computer.
• 11.Scanner.

(@ Cabdalla Saleebaan)