#### Number Systems Book Back Questions

11th Standard

Reg.No. :
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Computer Applications

Time : 00:45:00 Hrs
Total Marks : 30
5 x 1 = 5
1. Which refers to the number of bits processed by a computer's CPU?

(a)

Byte

(b)

Nibble

(c)

Word length

(d)

Bit

2. How many characters can be handled in Binary Coded Decimal System?

(a)

64

(b)

255

(c)

256

(d)

128

3. For 11012 what is the Hexadecimal equivalent?

(a)

F

(b)

E

(c)

D

(d)

B

4. What is the 1's complement of 00100110?

(a)

00100110

(b)

11011001

(c)

11010001

(d)

00101001

5. Which amongst this is not an Octal number?

(a)

645

(b)

234

(c)

876

(d)

123

6. 3 x 2 = 6
7. What is data?

8. Convert (46)10 into Binary number

9. List the encoding systems for characters it memory?

10. 3 x 3 = 9
11. What is radix of a number system? Give example

12. Convert (150)10 into Binary, then convert that Binary number to Octal.

13. Write short note on ISCII.

14. 2 x 5 = 10
15. a. Write the procedure to convert fractional Decimal to Binary
b. Convert (98.46)10 to bianary

16. a. Add 11010102 + 1011012
b. Subtract 11010112 - 1110102