Chapter 2, Understanding Function And Operation of Various ICT Devices

Page : 77-79
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 function of ROM?
4. Name three examples of network interface cards!
5. Name several cables that use on wired network!

Answer :

1. W is represented by the number code 87.
2. a. Control unit is to translate commands or instructions 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)  is to save computer operation program, such as BIOS and booting.
4. Ethernet, arcnet and token ring.
5. UTP cable ( Unshielde Twisted Pair), STP cable (Shielded Twsited Pair), Coaxial cable and Optical Fiber