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Bct 2101 : Introduction To Computers And Operating Systems Question Paper

Bct 2101 : Introduction To Computers And Operating Systems

Course:Bachelor Of Science In Computer Technology

Institution: Jomo Kenyatta University Of Agriculture And Technology question papers

Exam Year:2013

JOMO KENYATTA UNIVERSITY
OF
AGRICULTURE AND TECHNOLOGY

University Examinations 2013/2014

FIRST YEAR FIRST SEMESTER EXAMINATION FOR THE DEGREE OF BACHELOR OF SCIENCE IN COMPUTER TECHNOLOGY

BCT 2101 : INTRODUCTION TO COMPUTERS AND OPERATING SYSTEMS

DATE: AUGUST 2013 TIME: 2 HOURS

INSTRUCTIONS: ANSWER QUESTION ONE (COMPULSORY) AND
ANY OTHER TWO QUESTIONS.
______________________________________________________________________

QUESTION ONE (30 MARKS)

(a) Explain the following terms regarding the computer system:
[4 marks]
(i) Microcomputer.
(ii) Cache.
(iii) Byto.
(iv) Batch processing.

(b) Differentiate between application and system software and give two examples of each. [6 marks]

(c) Name and briefly explain any:

(i) Two input devices. [2 marks]
(ii) Three hardcopy output devices. [3 marks]
(iii) Three softcopy output devices. [3 marks]
(d) Define the following terms regarding the operating systems:
[8 marks]
(i) Utilities.
(ii) Kernel.
(iii) Spooling.
(iv) Interrupts.

(e) Describe two ways of classifying micro processors. [4 marks]

QUESTION TWO (20 MARKS)

(a) With the help of a well-labeled diagram, describe the machine cycle of the central processing unit. [5 marks]

(b) Write the following acronyms in full: [4 marks]

(i) CMOS
(ii) ASCII
(iii) BIOS
(iv) POST

(c) Differentiate between primary and secondary memory and give two examples in each case. [6 marks]

(d) Name and explain five different devices using embedded operating system. [5 marks]

QUESTION THREE (20 MARKS)

(a) (i) Explain the meaning of the term peripheral devices in the
computer system. [2 marks]

(ii) Name and explain any known peripheral devices. [4 marks]

(b) Describe each of the following terms and also write them in full form: [3 marks]

(i) Bit
(ii) GUI
(iii) API

(c) Name and explain any three data coding schemes. [6 marks]

(d) A computer of any form or make always performs four basic functions. Use a diagram to show and explain each of the functions. [5 marks]
QUESTION FOUR (20 MARKS)

(a) Name and explain five major functions of the operating system.
[5 marks]

(b) Explain the following while writing the equivalent full form:
[2 marks]
(i) RTOS
(ii) Ms DOS
(iii) PDA

(c) (i) Describe the term computer virus. [2 marks]
(ii) Describe three ways of preventing a virus attack.
[3 marks]

(d) Explain the following processes: [4 marks]

(i) Disk mirroring.
(ii) Data stripping.

(e) Explain the function of each of the following in the computer system: [3 marks]

(i) Control bus.
(ii) Register.
(iii) Data bus.

Bct 2101 : Introduction To Computers And Operating Systems Question Paper

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