Chapter 2 Understanding functions And Operation Of Various Information And ICT

Multiple Choice
1. A
2. C
3. B
4. B
5. E
6. E
7. C
8. B
9. A
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 and explain 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 command or instructions in a series and then continues them 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. the sapability depends on the memory capacity, which is stated in Byte, KByte, MByte and GByte unit.
3. ROM( Read Only Memory ) is to save computer operation program, such as BIOS and booting.
4. the example of network devices such as ethernet, arcnet and token ring.
5.  1. Thin ethernet(thinnet)
     2. Thick Ethernet(Thicknet)
     3. Twisted Pair Ethernet
     4. Fiber optic