Chapter 2.Understanding Functions and Operation of Various ICT Devices

A. Multiple Choice

1. E
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? The letter W is represented by the number code 87.
2. Name and explain all supporting devices inside a CPU. *Control Unit is 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. *Arithmetic Logic Unit (ALU) is to process data by adding, substracting, comparing, and using logical formulas. *Memory is to collect or to store data to run an application program. The capability dependes on the memory capacity, which is stated in Byte, KByte, Mbyte and GByte.
3. What is the abbreviation and the function of ROM? * ROM (Read Only Memory) is permanent memory that can be read but cannot be updated. ROM is to save computer operation program, such as BIOS and booting.
4. Name three examples of network interface cards. * ethernet, arcnet, dan token ring.
5. Name several cables that use on a wired network. * UTP cable, STP Cable, Coaxial Cable, Optical Fiber, Wireless Network.