Chapter 2 Understanding Functions And Operations Of Various ICT Devices

A. Muptiple Choise
1.  A
2. C
3. B
4. B
5. E
6. E
7. E
8. B
9. A
10. C

B. Essay
1. In ASSII code, by what code is letter W represented?
  Answer :
                W is represented by the number code 87.

2. Name and Explain  all supporting devices inside a CPU!
Answer :
             a. Control unit is to translate commands or intructions 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 procces data by adding, subtracting, 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. What is the abbreviation and the function of ROM?
 Answer :
              -ROM (Read Only Memory) is a permanent memory that can be read but cannot be update. ROM is to save computer operation program, such as BIOS and booting.

4. Name three examples of network interface cards!
Answer :
               -Ethernet,
               -Arcnet and
               -Token ring.

5. Name several cables that use on a wired network!
Answer :
              a. UTP Cable (Unshielded Twisted Pair)
              b. STP Cable (Shielded Twisted Pair)
              c. Coaxial Cable
              d. Optical Fiber