Chapter 2:Understanding Functions and Operations of Various Information and Comunication Technology Devices

A. Multiple Choice

1. A
2. D
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?
answer: Letter W is represented by the number code 87.
2. Name and explain all supporting devices inside a CPU?
answer: a. control Unitis to translate commands or instructions in a series and then continues them to the entire computer parts. This parts is how the processor controls the entire computer operation.
b. Arithmetic Logic Unit (ALU) is to process data dt adding, substracting, comparing, and using logical formulas.
c. memory is to collect or to store data to run an application program. The capability depends on the memory capacity, wich is stated in Byte, KByte, and GByte unit.
3. what is the abbreviation and the function of ROM ?
answer: ROM (read Only Memory)ROM is to save computer operation program, such as   BIOS and booting.
4. name three examples of network interface cards ?
answer: enthernet,arcnet,and token ring
5. Name several cables that as on wired network?
answer: UTP Cable (Unshielded Twisted Pair),STP Cable (Shielded Twisted Pair), Coaxial Cable,Optical Fiber.