Chapter 2 Understanding Functions and Operations of Various Information and Communication Technology Devices

A. Multiple Choice

1. a. every input that is received by a computer
2. c. the computer processing result
3. c. user-input-CPU-output-user
4. b. base-2 number system
5. e. 0 and 1
6. e. 8
7. c. speaker
8. b. Control Unit
9. b. MAN
10. c. ring topology

B. ESSAY

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. This part is how the processor controls the entire computer operations.
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 capability depends on the memory capacity, which is stated in Byte, KByte, MByte, and GByte unit.

3. a). ROM (Read Only Memory)
b). ROM is to save computer operations program such as BIOS and booting.

4. Ethernet, Arcnet, and Token ring.

5. a). UTP Cable ( Unshielded Twisted Pair )
b). STP Cable ( Shielded Twisted Pair )
c). Coaxial Cable