#### Number Systems One Mark Questions

11th Standard

Reg.No. :
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Computer Technology

Time : 00:30:00 Hrs
Total Marks : 15
15 x 1 = 15
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. For 11012 the equalent Hexadecimal equivalent is?

(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. 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. 1 Byte = ........... bits.

(a)

8

(b)

16

(c)

1024

(d)

512

12. Which is considered as the basic unit of measuring the memory size in the computer?

(a)

Bit

(b)

Byte

(c)

Nibble

(d)

Word

13. 4 bits =................

(a)

Bit

(b)

Byte

(c)

Nibble

(d)

Word

14. The number of bits a processor can read I write at a time is called............

(a)

nibble

(b)

word

(c)

byte

(d)

none of these

15. Which is used to measure the number of bits in each word?

(a)

Word length

(b)

length

(c)

Size

(d)

word size