Introduction to Computer Science (CSCS2104)
Mathematics and Computer Science - MCS
Semester: Resit
Level: 200
Year: 2017
UNIVERSITY OF BAMENDA
FACULTY OF SCIENCE DEPARTMENT OF PHYSICS
Resit Examinations
Physics Course code: CSCS2104 Time allowed: 2.0hrs
Course title: Introduction to Computer Sciences 05
th
August, 2017
Examiner: Dr. M.A. Onabid
1) What are the characteristics of a Computer? (2.5 marks)
2) Define an Operating System and give its function. (2.5 marks)
3) List the criteria by which one should judge an applications’ suitability for computerization.
(1.5 marks)
4) Construct Truth Tables for the following Boolean Algebra expressions:-
a. (A OR B)AND(A OR C)
b. ((NOT A) OR B) OR ((NOT B) AND C)
c. (X AND Y) OR ((NOT X) AND (NOT Y))
(1.5 marks)
5) Perform the following arithmetic subtractions using
a. Nine’s complement
b. Decimal complement
i) 458-247; ii) 75-67; iii) 365-225; iv) 50-35;
(1+1=2marks)
6) Convert the following to Hexadecimal
a. 246
b. Perform the following Hexadecimal arithmetic:-
5
+ 6
(1 mark)
7) What extension can be made to the present organisation of the processor in order to improve its
performance? (2 marks)
8) Define the following:-
i. Instruction Cycle
ii. Execution Cycle
(2 marks)
9) Differentiate between an Assembler and an Interpreter. Describe briefly the various stages
involved in compilation. (1+1= 2 marks)
10) What is Utility Software? List the functions of Utility Software. (3 marks)
GOOD LUCK!!!
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