Introduction to Computer Science Questions

Mathematics and Computer Science - MCS

Semester: First Semester

Level: 200

Year: 2016

UNIVERSITY OF BAMENDA

FACULTY OF SCIENCE DEPARTMENT OF PHYSICS

Level 1 Physics Continuous Assessment February 2016

Course Title: (Introduction to Computer Science; Code: CSCS2104 Time allowed: 1.5hrs

1) a) What does each of the following commands do?

C:\> Date; C:\> Time; C:\> Format A:/S; C:\> Copy tp1.txt + tp2.txt tp3.txt;

b) Give the command to perform each of the following consideration the current drive to be the c-

prompt (C:\>);

- To create a DOS file called FIRST

- To print a DOS file called FILE 1

- To Create a subdirectory called PH1

- To list all the files and subdirectories found in a diskette in drive A:

(1+1=2marks)

2) Give the minimum configuration needed by a machine on which you intend to install Windows XP.

- On the windows desktop, what is the function of each of the following?

a) My Document

b) Internet Explorer

c) Recycle Bin

d) Network neighbourhood (0.5+1=1.5marks)

3) Define an Operating System and list its functions.

(2.5 marks)

4) Construct Truth Tables for the following Boolean Algebra expressions:-

a. (A OR B)AND(A OR C)

b. NOT (A AND B) (1 mark)

5) Perform the following arithmetic subtractions using

a. Nine’s complement

b. Decimal complement

i) 458-247; ii) 75-67;

(1 mark)

6) Discuss briefly the following computer processing mode:-

c. Batch processing

d. Time sharing processing (2 marks)

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