CHAPTER 2 Understanding Fungtions Operations Of Various ICT Devices

A.Multiple Choice 

  1.C.every input from a computer

  2.B.data that is received by a computer

  3.B.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.A.LAN

 10.C.Ring topology

B.Essay

1.In ASCII code,by what code is letter W represented?

    Answer:The letter W is represented by number code 87

2.Name and explain all supporting devices insede a CPU?

  Answer:a.control unit is to translate commands or intructions in series and them continues them to the   entire computer parts

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

3.What is the abbreviation and the function of ROM?

Answer:the abbrevition ROM is Read Only Memory,function is to save computer operation program,such as BIOS and botting

4.Name three example of network interface caA Network Interface Card(NIC) such as:ethernet,arcnet and token ring.
5. A Wired Network the types of cables such as: UTP cable(Unshielded Twisted Pair),STP cable(Shielded Twisted Pair),Coaxcial cable,Optical fiberrds?

Answer: