WorksheetsY8 Data representation
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
Which unit of data is the biggest?
a)
Kilobyte
b)
Megabyte
c)
Gigabyte
2.
How many bit are there in a byte?
a)
8
b)
4
c)
2
3.
What denary number does this binary represent: 0101 ?
a)
3
b)
4
c)
5
4.
Add these binary numbers together: 0110 + 1001. What is the result?
a)
1111
b)
1010
c)
0110
5.
Which of the following best describes ASCII?
a)
A number set
b)
A character set
c)
A symbol set
6.
What is each pixel in a bitmap image represented by?
a)
A binary code
b)
Programming code
c)
Machine code
7.
How many colours can be represented in a 1 bit image?
a)
1
b)
2
c)
3
8.
How many colours can be represented in a 2 bit image?
a)
2
b)
3
c)
4
9.
IF the character is represented by the denary number 4, what is the binary code?
a)
0001
b)
0100
c)
1100
10.
Computers do not understand analogue sound. What must a computer system convert analogue sound to?
a)
Digital
b)
Sound waves
c)
Analogue
100 %
