Computer Studies 2014 Syllabus
Handout 04 – Coding Systems (2.1.2)
1. Which is the smallest unit on a computer system and what values can it store? (2)
2. If there is need to store 45 different characters, what is the least amount of bits that is required?
(2)
3. What does ASCII stand for? (1)
4. Use an example to show what happens if a computer stores text using the ASCII representation
and the same text is opened on another computer that does not use the same coding system.
(5)
5. By using the ASCII table, decode the following phrase made up of 5 letters: (7)
Letter
Binary Code
1
1001000
2
1101111
3
1110010
4
1110011
5
1100101
6. Why was UNICODE developed? (2)
7. How is text sorted when using ASCII? Use an example for your answer. (6)
8. State if the following statements are true or false using ASCII: (3)
a. c > C
b. ! < @
c. Z < a
Total Marks : 28
Mr. A. Gatt
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