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WorksheetsKS3_Data Representations (from clay to silicon)
Total questions: 15
Worksheet time: 8mins
What does the word ‘bit’ mean in Computing?
Very small piece
Binary digit
A group of 8 0s and 1s
A sequence of 0s and 1s
Which of the following is a binary digit?
2
bit
0
01
Which of the following would you characterise as ‘binary’?
A switch
An oven knob
A dice
Which of the following is a byte?
8
bit bit bit bit bit bit bit bit
01100101
1
How many different sequences of 3 binary digits can there be?
3
6
9
8
How many different sequences of 5 binary digits can there be?
32
25
10
5
Here is a sequence of binary digits:
01100010111001010011010001000111
What could this sequence represent? What could it mean?
Any piece of information
Musical Notes
A set of instructions
A number
Which of the following binary numbers is equivalent to decimal 4?
10
100
1010
1111
Which of the following binary numbers is equivalent to decimal 9?
101
10000
1010
1001
Which of the following decimal numbers is equivalent to binary 110?
2
6
30
110
Which of the following decimal numbers is equivalent to binary 11100?
14
28
70
320
Which prefix would you use to describe a quantity that is in the billions?
kilo
mega
giga
tera
Select the sizes that are equivalent to 500MB (megabytes).
5,000kB (kilobytes) ✔
0.6GB (gigabytes) ✔
5,000GB (gigabytes)
B. 0.5kB (kilobytes)
Can you identify an example of coding schemes that we use to represent characters using sequences of symbols?
ASCII
Alphabet
Numbers
Hode
Can you identify a well-known code used in digital devices that represents every character as a sequence of 7 binary digits?
Sign language
ASCII
Braille
Semaphores flags
