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1. Complete the following table.

Binary, Octal, Decimal equivalent of Hexa decimal 40

are 1000000,100 and 64 respectively, which is displayed

in the last raw.

2. Basic conversionsi. 110 convert to octalii. 2516convert to decimaliii. 358convert to hexadecimaliv. ABC16convert to octalv. 110112convert to octal

3. Find the decimal value of following numbersi. 110.012 ii. 0.0012 iii. 1.18 iv. AB.116 v. 22.28

4.i. A = 1112 B = 10112 C = 10012 X = A+B-CFind the binary value of X.ii. A = 100002 B = 100012 C = 1012 Y = A+B-CFind the binary value of Y.

iii. A = 1112 B = 10112 C = 10012 Z = A+B-CFind the octal value of Z

iv. P = A916 Q = 258 M = P-Q

Find the hexadecimal value of Mv. P = 1108 Q = 1718 R = 258 N = P+Q-RFind the octal value of N

5.i. Convert 25.1018 into binary.ii. Convert 11101.11012 into hexadecimaliii. Find the hexadecimal value of X

P = 110.12 Q = 17.118 R = 11.A16 X= P+Q+R

iv. Find the hexadecimal value of YP = 100010.12 Q = 10.218 R = 2A.D16 Y = P+Q-R

6. Find the binary answers for the following multiplications and divisions.i. 111.12 x 100.12ii. 101.012 x 20.28iii. A16 x B16iv. 1100102 / 1012v. 1010.12 / 11.12

Binary Octal Decimal Hexa

0

1

9

10

1000000 100 64 40

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ICT (A/L) Revision QuICT (A/L) Revision QuICT (A/L) Revision QuICT (A/L) Revision Question Paper 01estion Paper 01estion Paper 01estion Paper 01

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7. ABC is a digital computer which used 8 bits number representation method. 1st bit isassigned as sign bit (signed magnitude form).A. What is the machine code representation of following numbers?

i. 25 ii. -17 iii. 0 iv. -1 v. 64

B. What is the minimum and maximum value represented in that machine?

8. A digital device keeps decimal number in binary fixed point number system. The formatof the fixed number coding method as follows.

_ _ _ _ _ _

sign bit Integer fraction

What is the minimum and maximum decimal number that could be possible to keep in

system?

9. A = 0111, B = 1000, A, B are two numbers stored in a digital device. Find the answersfor following bit wise operations.i. NOT A ii. A OR B iii. A AND B iv. A XOR B

10. i. 1111 1110 is in 8 bit ones complement form, what is the decimal valuerepresented.

ii. What is the minimum and maximum number represented in 8 bits onescomplement form.

11. i. A = 0000 0000 B = 1111 1111, A, B in 2s complement form. What are thedecimal values represented by A,B.

ii. What is the 2s complement representation of 127 & -127.