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Computer Studies Form Three Question Paper

Computer Studies Form Three

Course:Computer Studies

Institution: Form 3 question papers

Exam Year:2009

NAME…………………………………………………CLASS……….ADM NO……….

ST. PETER’S MUMIAS BOYS HIGH SCHOOL
FORM THREE COMPUTER STUDIES PAPER 1 THEORY
JANUARY CAT 2009
TIME:

INSTRUCTIONS
Answer ALL questions

SECTION A (40mks)

1. Describe the booting process. (4mks)

2. Name any four advantages of optical disks over magnetic tapes. (4mks)

3. With the help of a diagram explain the concept of multigramming. (4mks)

4. distinguish between data and program giving examples in each case (2mks)

5. Name the keyboard key that can be used to enable a computer uses one write text in a sentence. (1mk)

6. List two types of address registers and state their function. (4mks)

7. Briefly explain how a micro processor executed an instruction. (4mks)

8. Why is parallel data transfer faster than serial data transfer? (2mks)

9. Write the following acronyms in full.
(i) WIMP
(ii) ADSL
(iii) VDV
(iv) CLS (2mks)

10. Describe the three components of spreadsheets. (6mk)

11. Work out the following binary subtraction using ones complement.

(i) 11001 – 1101

(ii) 100011 -111

(iii) 1000 -101 (6mks)

12. What is a kernel? (1mk)

SECTION B. (60MKS)

13. (a) define the following terms in relation to the internet

(i) Homepage

(ii) Hyperlink

(iii) Hypertext

(iv) Browser.

(c) A part from the computer describes any four things that are necessary in order to connect tot he internet. (8mk)

(d) Write the following acronyms in full.

(i) H T T P
(ii) H T M L

(iii) T C P / I P

16. (a) Explain 8 measures that can be taken to protect information systems loss of data and information. (8mks)

(b) Distinguish the following terms (6mks)

(i) Trespass and Tapping.

(ii) Hacking and Cracking.

(iii) Log files and Firewalls

(c) Name any two types of computers viruses (1mk)

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