Answer ALL questions. Write your answers in the spaces provided.
Some questions must be answered with a cross in a box . If you change your mind about an
answer, put a line through the box and then mark your new answer
...
Answer ALL questions. Write your answers in the spaces provided.
Some questions must be answered with a cross in a box . If you change your mind about an
answer, put a line through the box and then mark your new answer with a cross .
1 Most programs are written using high-level languages.
(a) Identify one term used to describe a compiler.
(1)
A Interpreter
B Low-level language
C Pseudocode
D Translator
(b) State two types of utility software.
(2)
1 ................................................................................................................................................................................................................................................................................
2 ................................................................................................................................................................................................................................................................................
(c) Complete this sentence.
(2)
Instructions written in a high-level language must be
converted to ........................................................................... , so that they can be
executed by the ........................................................................... .
(d) Explain one reason why compiled code helps protect intellectual property.
(2)
....................................................................................................................................................................................................................................................................................
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(Total for Question 1 = 7 marks)
https://britishstudentroom-b430a.web.app/*P66482A0316* Turn over 3
2 Computers carry out comparisons.
(a) Complete the truth table.
(6)
X Y Z Y AND Z X OR (Y AND Z)
0 1 0 0
0 1 1 1 1
1 1 0 0
1 1 1 1 1
0 0 0 0
0 0 1 0
1 0 0 1
1 0 1 0
(b) State the name of the component of the CPU that performs comparisons.
(1)
....................................................................................................................................................................................................................................................................................
(c) Complete this model, which is used by all computers.
(1)
Input ........................................................... Output
(d) State the function of cache memory.
(1)
....................................................................................................................................................................................................................................................................................
....................................................................................................................................................................................................................................................................................
(Total for Question 2 = 9 marks)
https://britishstudentroom-b430a.web.app/4 *P66482A0416*
3 Algorithms are used in the design of computer programs.
(a) Describe what is meant by the term ‘algorithm’.
(2)
....................................................................................................................................................................................................................................................................................
....................................................................................................................................................................................................................................................................................
(b) Draw a straight line to match each use to the correct term.
(3)
Use Term
Making decisions
Abstraction
Removing unnecessary
detail
Initialisation
Repeating code Selection
Iteration
Sequence
https://britishstudentroom-b430a.web.app/*P66482A0516* Turn over 5
(c) Explain why it is important for computing technology to be inclusive.
(2)
....................................................................................................................................................................................................................................................................................
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(d) Explain one positive impact of computing technology on the environment.
(2)
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(e) Some open source software requires payment from users.
All open source software gives software developers certain freedoms
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