Chapter 2 Understanding Functions Operations Of Various ICT Devices

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

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 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. The letter W is represented by the number code 87.
2. a. Control unit is to translate commands or instruction in a series and then continues them to the entire computer parts.
    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 )
    Function ROM is to save computer operation program, such as BIOS and booting.
4. Ethernet, arcnet, and token ring.
5. a. Thin Ethernet (thinnet ) has an advantage in terms of the relatively cheaper cost compared to othertypes of cabling and the installation of components easier.
    b. Thick Ethernet (thicknet) with thick ethernet or thicket number of computer 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.