W1-2-60-1-6
JOMO KENYATTA UNIVERSITY OF AGRICULTURE AND TECHNOLOGY
UNIVERSITY EXAMINATIONS 2016/2017
FIRST YEAR FIRST SEMESTER EXAMINATIONS FOR THE DIPLOMA IN INFORMATION TECHNOLOGY
DIT 0205 : PRINCIPLES OF COMPUTER SUPPORT AND MAINTENANCE
DATE: DECEMBER 2016 TIME: 1.30 HOURS
INSTRUCTIONS:
ANSWER QUESTION ONE [COMPULSORY] AND ANY OTHER TWO QUESTIONS
QUESTION ONE [30 MARKS]
(a) State and describe THREE classes of computer systems [9 marks]
(b) List and explain the six main parts of a typical computer system [12 marks]
(c) You plan to purchase a high quality personal computer (PC), explain any five factors you would consider when placing your order [9 marks]
QUESTION TWO [20 MARKS]
You are the term leader in a PC support and maintenance class at JKUAT, discus
the following
(i) Five safety precautions you will instruct your group to observe when reporting and servicing computer systems [10 marks]
(ii) The four most important tools you will require [8 marks]
(iii) One instrument you will need most [2 marks]
QUESTION THREE [20 MARKS]
(a) Explain how you would trouble shoot a PC with the following symptoms
(i) PC appears dead
(ii) PC sometimes halts during booting
(iii) Smell burnt parts or odours
(iv) PC powers down unexpectedly [10 marks]
(b) Write the following acronyms in full
(i) USB
(ii) BIOS
(iii) CPU
(iv) RAM
(v) CMOS
QUESTION FOUR [20 MARKS]
(a) Explain what signs you would observe on a computer which the following components are faulty
(i) Mother board [2 marks]
(ii) Fain [2 marks]
(iii) Loose power supply connection [2 marks]
(iv) Fused protective device [2 marks]
(v) Loose internal connection [2 marks]
(b) Discuss two mother board forms factors found in most personal computers [6 marks]
(c) Differentiate between:
(i) Expansion card and expansion ………………..
(ii) Trackbell and Joystick [4 marks]
