Chapter 2. Uderstanding Functions and Operations 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

1. In ASCII code, by what code is letter W represented ?

2. Name and explain all supporting devices inside a CPU.

3. What is the abbrevation and the fuction of ROM.

4. Na,e three examples of network interface cards.

5. Name several cables that use on a wired network.



1. The letter W is represented by the number code 87

2. a. Control unit is to translate commands or intruction in a series and then to the entire computer parts. This part is how the processor controls the entire computer operation.
    b. Arithmetic Logic Unit (ALU) is to process data by adding, substracting, comparing and using logical formulas.
    c. Memory is to collect or to store data to run an application program.
3. ROM (Read Only Memory) is a permanent memory that can be read but cannot be updatted. ROM is to save computer operation program, such as BIOS and booting.
4. Ethernet, arcnet, token ring.
5. a. Thin Ethernet (thinnet), has an advantage in terms of the relatively cheaper cost compared to other types of cabling and the installation of components easier.
    b. Thick Ethernet (Thicknet), with Thick Ethernet or thicket number of computers that can be connected in a network will be more and the distance between the computers can be enlarged.
    c. Twisted Pair Ethernet, divided into 2 types of shielded and unshielded.
    d. Fiber Optic, Fiber Optic network using (FOR) are usually large companies, due to price and installation process more difficult.

Personas for Firefox | Rainbow Waves

Personas for Firefox | Rainbow Waves