Chapter 2 : Understanding Functions and Operation of various Information and communication technology Devices

A. MULTIPLE CHOICE

1. A
2. C
3. B
4. B
5. E
6. E
7. C
8. B
9. A
10. C

B. ESSAY
Answer the following questions correctly.
1. In ASCII code, by what code is letter W represented?
2. Name and explain all supporting devices inseide a CPU?
3. What is the abbreviation and the function of ROM ?
4. Name three examples of network interface cards.
5. Name several cables that use on a wired network.

ANSWER ! ! !
1. W is represented by the number code 87.

2. If CPU ( Casing ) so the supporting devices are Monitor, Keyboard,Printer, Mouse, Speker.

- Monitor / Devices
Is to display information in visual form, using images and text.

-Printer
 Printer is an Output device to produce the result of computer process in text or graphic on paper ( in a Printed form).

-Speaker
 A Speaker is an output device which produces sound signal.

3. ROM ( Read Only Memory).
And ROM is to save computer operating program , such as BIOS and booting.

4. There are several NIC types in the market, such us: Ethernet, Arcnet, and token ring. The most commonly used of all the three is Ethernet.

5.  There are several  types of a cables for this computer network, namely:

1. UTP Cable ( Unshielded Twisted Pair)
2. STP Cable  (Shielded Twisted Pair )
3. Coaxial Cable
4. Optical Fiber