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Worksheets

Number system

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

A group of 4 bits

a)

Byte

b)

MegaByte

c)

Nibble

d)

Kilobyte

2.

What is the decimal equivalent of binary 110?

a)

8

b)

7

c)

6

d)

9

3.

What is the decimal equivalent of octal 31?

a)

25

b)

26

c)

27

d)

28

4.

THE BASE OF BINARY NUMBER SYSTEM IS ________

a)

3

b)

4

c)

2

d)

6

5.

THE BASE OF _____________ SYSTEM IS 10

a)

DECIMAL

b)

BINARY

c)

HEXA DECIMAL

d)

OCTAL

6.

OCTAL NUMBER SYSTEM CONSISTS OF ______ DIGITS

a)

9

b)

8

c)

6

d)

10

7.

________________ NUMBER SYSTEM IS UNDERSTOOD BY THE COMPUTER SYSTEM.

a)

BINARY

b)

HEXA DECIMAL

c)

DECIMAL

d)

OCTAL

8.

_________________ USES 16 SYMBOLS TO REPRESENT NUMBERS.

a)

HEXA DECIMAL

b)

OCTAL

c)

BINARY

d)

DECIMAL

9.

IN BINARY SUBTRACTION, 1-1 EQUALS

a)

0

b)

2

c)

1

d)

8

10.

THE DECIMAL NUMBER SYSTEM USES 10 DIGITS, ITS BASE IS

a)

10

b)

8

c)

2

11.

The number system that computers can understand is

(a)  

12.

To find whether the number is decimal or binary (a)   value is used

13.

In Binary addition, 1+1 = _____

a)

2

b)

10

14.

To convert decimal number to binary, divide the number by

(a)  

15.

While adding 1 + 1, the output is 10, where which digit is written under the same column (write only the number)

(a)  

16.
A group of 8 bits is known as a gigabyte.
a)
True
b)
False
17.
A group of 1024 bytes is called a terabyte.
a)
True
b)
False
18.
A group of 1024 megabytes is called a byte.
a)
True
b)
False
19.
A bit generally consists of eight bytes.
a)
True
b)
False
20.
A bit is smaller than a byte.
a)
True
b)
False