Evaluation of Chapter 2

A. Multiple Choice
Choose tht coreect answer

1.  Computer is an electronic device that is able to process data and produce information. The meaning of data input on computer is...
     a. every input that is received by a computer
     b. every input that is sent by a computer
     c. every input from a computer
     d. every output that is sent by a computer
     e. the computer processing result
the correct answer is: a. every input that is received by a computer

2. Besides processing data, a computer can produce information refers to...
     a. an input that is received by a computer
     b. data that is received by a computer 
     c. the computer processing result
     d. the computer organizing result
     e. the computer revised result
the correct answer is: c. the computer processing result


3. The information cycle sequence is...
     a. input-output-user-CPU-user
     b. user-input-CPU-output-user
     c. user-output-input-CPU-user
     d. CPU-user-input-output-user
     e. user-input-output-CPU-user
the correct answer is: b. user-input-CPU-output-user

4. A binary system is also called...
     a. base-1 number system
     b. base-2 number system
     c. base-7 number system
     d. base-10 number system
     e. base-16 number system
the correct answer is: b. base-2 number system 


5. A binary system is a digital number that consists of 2 digits number, which are...
     a. 4 and 5
     b. 3 and 4
     c. 2 and 3
     d. 1 and 2
     e. 0 and 1
the correct answer is: e. 0 and 1


6. One Byte consists of...bits.
     a. 4
     b. 5
     c. 6
     d. 7
     e. 8
the correct answer is: e. 8


7. These are direct input hardwares, except...
     a. mouse
     b. keyboard
     c. speaker
     d. joystick
     e. microphone
the correct answer is: c. speaker


8. In the processing device there is a device that interprets command in sequence and conveys it to the entire computer parts. That device is called...
     a. CPU
     b. Control Unit
     c. ALU
     d. Memory
     e. RAM
the correct answer is: b. Control Unit

9. A computer network that only links in a location such as a company building is called...
     a. LAN
     b. MAN
     c. WAN
     d. ATM
     e. GAN
the correct answer is: a LAN 


10. Network topology where each node is linked with other nodes in a ring form is called...
     a. star topology
     b. bus topology
     c. ring topology
     d. delta topology
     e. mesh topology
the correct answer is: c. ring topology






B. Essay
Answer the following questions correctly


1. In ASCII code, what code is letter W represented?
Answered: The letter W is represented by the number code 87


2. Name and explain all supporting devices inside a CPU.
Answered:  A processing devise (Central Processing Unit/CPU) is a center to process and to control every data processing device concist of the Control Unit (CU), the Arithmetic Logic Unit (ALU), and the memory.
     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 operation.
     b. Arithmetic Logic Unit (ALU) is to process 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?
Answered: ROM (Read Only Memory) is a permanent memory that can be read but cannot be update ROM is to save operation program, such as BIOS and booting.


4. Name three example of network interface cards.
Answered: There are several NIC types in the market, such as ethernet, ercnet, and token ring.


5. Name several cables that use on a wired network.
Answered: There are several types of cables for this computer network, namely:
     a. UTP cable (Unshielded Twisted Pair)
     b. STP cable (Shielded Twisted Pair)
     c. Coaxial cable