COMPUTER APPLICATION QUESTION BATCH 2014

 5.  a). Define the following terms:

i)     Software

ii)    Operating system

iii)  Programs

iv)  Back up

b) With the aid of a diagram explain how the central processing unit receives data, process and store them in a computer system.

 

16.  a). Briefly explain the function of each of the following terms as used in computer:

i)     Control unit

ii)    Power supply

iii)  RAM

iv)  Computer case

v)   Motherboard

 

b) Convert the following into binary:-

i)     103

ii)    2

iii)  1011

iv)  111

 

17.  a). What do you understand by the following terms as used in personal

computer:

i)            Assembling

ii)           Troubleshooting

iii)          Safety procedures

iv)          Maintenance

b) List at least five tools or equipment that are necessary when performing

safely computer troubleshooting and maintenance.

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18.  (a) Expl in t le st ifferen es between “ omputer softw re” n

“ omputer h r w re”

b) Enumerate at least two (2) advantages of each of the following

devices:-

i)            Router

ii)           Bridge

 

19.  a). What are the functions of the following keys in a keyboard when you

are performing any task?

i)            Shift

ii)           Enter

iii)          Space bar

iv)          Caps lock

v)           Back space

 

b) Briefly explain the following terms:

i)     Computer technician

ii)    Computer assembly

iii)  Computer upgrade

iv)  Computer troubleshoot

v)   Computer maintenance

 

20. (a) Wh t is “Classification  of omputer” mention ny two

           b) Write the long form of the following abbreviations:

i)     WAN

ii)    ISDN

iii)  WAP

iv)  DRAM

21.  a). A central processing unit (CPU) contains a number of registers. Mention at least four (4) basic types of registers.

b) Explain the difference between restore system and backup system.