OCR • Computer Science
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Modules Computer Science at OCR
Notes available for the following courses of Computer Science at OCR
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Question	Answer	Mark	Guidance 
1	(a)		1 mark per box up to a maximum of 4 marks: 
 	4 
 
AO2.2 (4)	 
1	(b)		1 mark for any of the following bullet points: 
•	To write programming code. 
•	To debug programming code. 
•	To compile/interpret code.	1 
 
A01.1 (1)	 
1	(c)		1 mark per bullet up to a maximum of 2 marks for each construct (4	4	Award 1 mark for stating a construct and then 1 
			marks in total), e.g.:		mark for a suitable example that is relevant to the 
			•	Sequence…	A01.2	co...
1	Ruhail owns ten different function rooms which can be hired by different business customers to hold meetings. He would like a program to manage the booking process of each room. 
 
Customers should be able to enter the date they want to hire a function room, and then a list of available rooms will be displayed. Customers can then select which room they want to hire. Customers can then enter their payment details which are then checked and then a confirmation email is sent to the customer. 
 
(...
Question	Answer	Mark	Guidance 
1	(a)		1 mark per bullet up to a maximum of 2 marks, e.g: 
•	Stored in ROM 
•	Tests hardware/components (are working) 
•	Boots up the operating system	2 
AO1.2 (2)	Accept description of POST/Power On Self Test for BP2 
					Accept loads up instead of boots up (BP3) 
1	(b)	(i)	1 mark for any of the following bullet points: 
•	Round Robin 
•	Multi-level feedback queues 
•	Shortest job first 
•	Shortest time remaining	1 
AO1.1 (1)	Do not Allow: 
•	Firs...
1	Arnold has several computing devices around his home. Each device has an operating system installed. 
 
(a)	Arnold has a PC which has a Basic Input Output System (BIOS). 
 
Describe what is meant by the term ‘BIOS’. 
 
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1 These questions are from different areas of chemistry. 
(a) Ammonia, NH3 
, and ammonium nitrate, NH4 
NO3 
, are compounds of nitrogen. 
(i) The boiling point of NH3 is –33 °C. 
The boiling point of NH4 
NO3 is 210 
°C. 
Explain why there is a large difference in boiling points. 
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OCR A LEVEL JUNE 2022 COMPUTER 
SCIENCE MARKSHEME PAPER 2 
ALGORITHMS AND PROGRAMMING 
S - The Marketplace to Buy and Sell your Study 
Downloaded by: NorthWest | 
Oxford Cambridge and RSA 
GCE 
Computer Science 
H446/02: Algorithms and programming 
A Level 
Mark Scheme for June 2022 
S - The Marketplace to Buy and Sell your Study 
Downloaded by: NorthWest | 
Oxford Cambridge and RSA 
OCR (Oxford Cambridge and RSA) is a leading UK awarding body, providing a wide range of 
qualifications to meet...
Theory of Computation
OCR (9–1) Computer Science 
J276/01 Computer Systems 
Exam Question and Mark Scheme 
INSTRUCTIONS TO CANDIDATES 
• Write your name, centre number and candidate number in the boxes above. Please write clearly and in capital letters. 
• Use black ink. HB pencil may be used for graphs and diagrams only. 
• Answer all the questions, unless your teacher tells you otherwise. 
• Read each question carefully. Make sure you know what you have to do before starting your answer. 
• Where space ...
OCR (9–1) Computer Science 
J276/01 Computer Systems 
Exam Question and Mark Scheme 
INSTRUCTIONS TO CANDIDATES 
• Write your name, centre number and candidate number in the boxes above. Please write clearly and in capital letters. 
• Use black ink. HB pencil may be used for graphs and diagrams only. 
• Answer all the questions, unless your teacher tells you otherwise. 
• Read each question carefully. Make sure you know what you have to do before starting your answer. 
• Where space ...
OCR (9–1) Computer Science 
J276/01 Computer Systems 
Exam Question and Mark Scheme 
INSTRUCTIONS TO CANDIDATES 
• Write your name, centre number and candidate number in the boxes above. Please write clearly and in capital letters. 
• Use black ink. HB pencil may be used for graphs and diagrams only. 
• Answer all the questions, unless your teacher tells you otherwise. 
• Read each question carefully. Make sure you know what you have to do before starting your answer. 
• Where space ...