4
2.5 An operating system is needed for a computer to function.
QUESTION 3 - FILL IN THE MISSING WORD/PHRASE
(5 MARKS)
3.1
The .......................is anyone who communicates with a computer or utilizes the
information it generates.
3.2 ....................................controls accessto the hardware, software and other resources
on a network and provides a centralized storage area for programs, data and
information.
3.3 The ..................................... is sometimes called a system board of the System Unit.
3.4 ...................................are powerful computers used by large organizations to process
large volumes of data and run critical applications.
3.5 ...........................A collection of computers and devices connected, often wirelessly.
QUESTION 4 - LONG QUESTIONS
(30 MARKS)
4.1 Briefly outline the machine cycle process.
(10)
4.2 What are some of the major electronic components of the System Unit. State at
least 4.
(4)
4.3 Name three areas where the military use computers in their day to day
activities.
(3)
4.4 Name and explain the four elements required to obtain data from a computer. (8)
4.5 Mention four (4) characteristics of a laptop
(4)
4.6 What is one function of the Arthimetic Unit in a computer?
(1)
QUESTION 5
(50 MARKS)
5.1 Explain the following terms:
(10)
(a) Registers
(b) Busses
(c) Bit
(d) Information
(e) Communication