The DHR IGCSE Computer Science
Pearson Edexcel International GCSE
Edexcel 2024 Predicted Paper 1
IGCSE (9–1) Computer Science
4CP0 DHR
Time allowed: 2 hours
Do not use a calculator
INSTRUCTIONS
Use black ink.
Write your answer to each question in the space provided. If you need
extra space, use the lined pages at the end of this booklet. The question
numbers must be clearly shown.
Answer all the questions.
INFORMATION
The total mark for this paper is 80.
The marks for each question are shown in brackets [].
Quality of extended response will be assessed in questions marked with
an asterisk (*).
This document has 13 pages.
ADVICE
Read each question carefully before you start your answer.
This is just a predicted paper based off previous years
Telegram Channel: DHRinspires 1
X/Instagram : DHRhere
, The DHR IGCSE Computer Science
Pearson Edexcel International GCSE
1. Faiha has designed a computer using Von Neumann architecture.
(a) Describe the purpose of two registers that are used by Von Neumann architecture.
1 MAR - Memory Address Register
Stores the address of the data to be fetched from, or the address
where the data is to be stored
2 MDR - Memory Data Register
Stores the data itself which has been read from main memory or
is about to be written to main memory
OR:
Program Counter - Stores the address of the next instruction to be fetched from memory.
(Which sends the value to the MAR) This counter increments by 1 in each FDE cycle [4]
Accumulator- Stores the results of calculations
(b) State what is meant by a single core 3.5 GHz processor.
Single core means there is only one processor
3.5Ghz means it can run 3.5 billion FDE cycles per second
[2]
Telegram Channel: DHRinspires 2
X/Instagram : DHRhere
Pearson Edexcel International GCSE
Edexcel 2024 Predicted Paper 1
IGCSE (9–1) Computer Science
4CP0 DHR
Time allowed: 2 hours
Do not use a calculator
INSTRUCTIONS
Use black ink.
Write your answer to each question in the space provided. If you need
extra space, use the lined pages at the end of this booklet. The question
numbers must be clearly shown.
Answer all the questions.
INFORMATION
The total mark for this paper is 80.
The marks for each question are shown in brackets [].
Quality of extended response will be assessed in questions marked with
an asterisk (*).
This document has 13 pages.
ADVICE
Read each question carefully before you start your answer.
This is just a predicted paper based off previous years
Telegram Channel: DHRinspires 1
X/Instagram : DHRhere
, The DHR IGCSE Computer Science
Pearson Edexcel International GCSE
1. Faiha has designed a computer using Von Neumann architecture.
(a) Describe the purpose of two registers that are used by Von Neumann architecture.
1 MAR - Memory Address Register
Stores the address of the data to be fetched from, or the address
where the data is to be stored
2 MDR - Memory Data Register
Stores the data itself which has been read from main memory or
is about to be written to main memory
OR:
Program Counter - Stores the address of the next instruction to be fetched from memory.
(Which sends the value to the MAR) This counter increments by 1 in each FDE cycle [4]
Accumulator- Stores the results of calculations
(b) State what is meant by a single core 3.5 GHz processor.
Single core means there is only one processor
3.5Ghz means it can run 3.5 billion FDE cycles per second
[2]
Telegram Channel: DHRinspires 2
X/Instagram : DHRhere
