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Worksheets

Number System

Total questions: 20

Worksheet time: 12mins

Name
Class
Date
1.

This system of ten digits is called the decimal number system while the number system that uses only two digits is called _____.

a)

the hexadecimal number system

b)

the octal number system

c)

the binary number system

d)

the duodecimal number system

2.

The only two digits used in the binary number system are _______.

a)

one and two

b)

zero and one

c)

zero and two

d)

two and three

3.

Which of the following is the best definition of a bit?

a)

An electrical signal in a wire

b)

A physical signal that becomes a digital signal

c)

A measure of computer graphics and sound

d)

A single 1 or 0 in a digital signal

4.

How many bits are in a single byte?

a)

4

b)

8

c)

12

d)

16

5.
The binary digits 0 and 1 are each called a bit.
a)
True
b)
False
6.

Which of these are the correct place values for binary?

a)

128,64,32,16,8,4,2,1

b)

128, 68,34,12,6,4,2,1

c)

1,0

d)

0,1

7.
The following is a correct order of units of storage from lowest to highest:
a)
a bit, a nibble, a byte, a kilobyte, a megabyte, a gigabyte, a terabyte
b)
a bit, a byte, a nibble, a kilobyte, a megabyte, a gigabyte, a terabyte
c)
a bit, a nibble, a byte, a megabyte, a kilobyte, a gigabyte, a terabyte
d)
a byte, a bit, a nibble, a megabyte, a kilobyte, a gigabyte, a terabyte
8.

A nibble is how many bits?

a)

4

b)

8

c)

1

d)

16

9.

How many bits are there in 4 bytes?

a)

32

b)

4

c)

1

d)

4000

10.

What kind of 'base' system is binary known as?

a)

Base 12

b)

Base 8

c)

Base 2

d)

Base 10

11.

The highest digit in Octal is _________.

a)

7

b)

6

c)

5

d)

4

12.

The Octal Numbering System have a range of "8" digits which is ________________.

a)

1, 2, 3, 4, 5, 6, 7, 8

b)

0,1, 2, 3, 4, 5, 6, 7, 8

c)

0, 1, 2, 3, 4, 5, 6, 7,

d)

1, 2, 3, 4, 5, 6, 7

13.

What does the term 'octal' mean?

a)

Relating to a system with 8 as a base

b)

Relating to a system with 10 as a base

c)

Relating to a system with 16 as a base

d)

Relating to a system with 2 as a base

14.

a base 16 system used to simplify how binary is represented

a)

Hexadecimal

b)

Octal

c)

Binary

d)

Decimal

15.

uses the digits 0 to 7

a)

Hexadecimal

b)

Octal

c)

Binary

d)

Decimal

16.

The decimal number 1010 in hexadecimal is A16

a)

True

b)

False

17.

The decimal number 1010 in octal is A8

a)

True

b)

False

18.

The decimal number 1010 in octal is 128

a)

True

b)

False

19.

The binary number 001112 in decimal number is 710

a)

True

b)

False

20.

THE BASE OF _____________ SYSTEM IS 10

a)

DECIMAL

b)

BINARY

c)

HEXA DECIMAL

d)

OCTAL