Dict 1402 Question Paper

Dict 1402

Course:Computer Studies

Institution: Institute Of Advanced Technology Mombasa question papers

Exam Year:2015

QUESTIONS
1.CONVERT THE FOLLOWING DECIMAL VALUES TO BINARY ,OCTAL AND HEXADECIMAL(6mks).
A) 170
B)111
2.CONVERT THE FOLLOWING OCTAL VALUES TO DECIMAL, BINARY AND HEXADECIMAL(6mks)
A) 70
B)047

3.CONVERT THE FOLLOWING HEXADECIMAL TO BINARY, DECIMAL AND OCTAL. (6mks)
A) C5A
B)A0

4.STATE TWO DIFFERENCES BETWEEN ANALOGUE AND DIGITAL SIGNALS(4mks)

5.DISCUSS FIVE ADVANTAGES OF DIGITAL CIRCUITS WHEN COMPARED TO ANALOGUE(5mks)

6.COMPLETE THE FOLLOWING BOOLEAN ALGORITHMS(4mks)
A) A+0=
B)A+1=
C)A+A=
D)OA=
E)1A
F)AA=

7)IDENTIFY THE THREE BASIC GATES AND THEIR TRUTH TABLES(6mks)