EDEXCEL GCSE COMPUTER SCIENCE MAY JUNE 2025 PAPER 1 QUESTION PAPER

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Pearson Edexcel Level 1/Level 2 GCSE (9–1)
Monday 12 May 2025
Afternoon (Time: 1 hour 30 minutes) Paper
reference 1CP2/01
Computer Science  


PAPER 1: Principles of Computer Science


You do not need any other materials. Total Marks




Instructions
•• Use black ink or ball-point pen.
Fill in the boxes at the top of this page with your name,
centre number and candidate number.
•• Answer all questions.
Answer the questions in the spaces provided
– there may be more space than you need.
• You are not allowed to use a calculator.
Information
•• The total mark for this paper is 75.
The marks for each question are shown in brackets
– use this as a guide as to how much time to spend on each question.

Advice
•• Read each question carefully before you start to answer it.
Try to answer every question.
• Check your answers if you have time at the end.

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, 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
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answer, put a line through the box and then mark your new answer with a cross .
1 Data
(a) Binary patterns consist of groups of bits.
(i) Identify the largest unit of measurement.
(1)
A Gibibyte

B Kibibyte

C Mebibyte

D Nibble

(ii) State the number of unique values that can be represented with 7 bits.
(1)

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(iii) The denary ASCII code for D is 68.
Give the denary ASCII code for G.
(1)

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(b) Hexadecimal is used to represent memory addresses.
(i) Give two characteristics of hexadecimal notation.
(2)

1 . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ........................................................................................................................................... ................ . . . . . . . . . . . . . . . . . . . .

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