OCR • Computer Science

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’. ................................................................................................................................................... ...............................................................................................................................

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. ........................................................................................................................................... ..........................................................................

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 ...