#### Number Systems Important Questions

11th Standard

Reg.No. :
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Computer Technology

Time : 01:00:00 Hrs
Total Marks : 50
10 x 1 = 10
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 bytes does 1 KiloByte contain?

(a)

1000

(b)

8

(c)

4

(d)

1024

3. Expansion for ASCII

(a)

American School Code for Information Interchange

(b)

American Standard Code for Information Interchange

(c)

All Standard Code for Information Interchange

(d)

American Society Code for Information Interchange

4. 2$\wedge$50 is referred as

(a)

kilo

(b)

Tera

(c)

Peta

(d)

Zetta

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

(a)

64

(b)

255

(c)

256

(d)

128

6. Which is a basic electronic circuit which operates on one or more signals?

(a)

Boolean algebra

(b)

Gate

(c)

Fundamental gates

(d)

Derived gates

7. Which gate is called as the logical inverter?

(a)

AND

(b)

OR

(c)

NOT

(d)

XNOR

8. A + A =?

(a)

A

(b)

O

(c)

I

(d)

A

9. NOR is a combination of?

(a)

NOT(OR)

(b)

NOT(AND)

(c)

NOT(NOT)

(d)

NOT(NOR)

10. NAND is called as ......Gate

(a)

Fundamental Gate

(b)

Derived Gate

(c)

Logical Gate

(d)

Electronic gate

11. 6 x 2 = 12
12. What is data?

13. Write the 1's complement procedure

14. Convert (46)10 into Binary number

15. What Is Boolean Algebra?

16. Write a short note on NAND Gate

17. Draw the truth table for XOR gate

18. 6 x 3 = 18
19. What is radix of a number system? Give example

20. Write note on binary number System

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

23. Write the truth table of fundamental gates

24. Write a short note on XNOR gate

25. 2 x 5 = 10
26. Write the procedure to convert fractional Decimal to Binary

27. Explain the fundamental gates of expression and truth table