Chapter 2.Understanding functions and Operation of Various ICT Devices

EVALUATION OF CHAPTER 2

A. Multiple Choice

1.a. Every input that is received by a computer
2.c. The computer processing result
3.b. User-input-CPU-outout-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.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 several cables that use on a wired network.

ANSWER

1. The letter W is represented by the number code 87.
2. A CPU socket which is where a microprocessor is placed; A memory slot which is where a computer memory is placed; A chipset  which is a chip that regulates the interaction among devices, there are a southbridge chip and a northbridge chip; An expansion slot, such as PCI, AGP, and PCI Express; A power connector to receive electrical input from the power supply unit (PSU) and then distributes the electricity to all connencting devices.
3. ROM (Read Only Memory) is a permanent memory that can be read but cannot be updated. ROM is to save computer operation program, such as BIOS and booting
4. Ethernet, arcnet, and token ring
5. UTP Cable, STP Cable, Coaxial Cable