Pearson Edexcel GCSE In

Mark Scheme (Results) Summer 2024 Pearson Edexcel GCSE In Computer Science (1CP2/01) Paper 1: Principles of Computer Science Edexcel and BTEC Qualifications Edexcel and BTEC qualifications are awarded by Pearson, the UK’s largest awarding body. We provide a wide range of qualifications including academic, vocational, occupational and specific programmes for employers. For further information visit our qualifications websites at or . Alternatively, you can get in touch with us using the details on our contact us page at Pearson: helping people progress, everywhere Pearson aspires to be the world’s leading learning company. Our aim is to help everyone progress in their lives through education. We believe in every kind of learning, for all kinds of people, wherever they are in the world. We’ve been involved in education for over 150 years, and by working across 70 countries, in 100 languages, we have built an international reputation for our commitment to high standards and raising achievement through innovation in education. Find out more about how we can help you and your students at: Summer 2024 Question Paper Log Number P78200RA Publications Code 1CP2_01_2406_MS All the material in this publication is copyright © Pearson Education Ltd 2024 General Marking Guidance • All candidates must receive the same treatment. Examiners must mark the first candidate in exactly the same way as they mark the last. • Mark schemes should be applied positively. Candidates must be rewarded for what they have shown they can do rather than penalised for omissions. • Examiners should mark according to the mark scheme not according to their perception of where the grade boundaries may lie. • There is no ceiling on achievement. All marks on the mark scheme should be used appropriately. • All the marks on the mark scheme are designed to be awarded. Examiners should always award full marks if deserved, i.e. if the answer matches the mark scheme. Examiners should also be prepared to award zero marks if the candidate’s response is not worthy of credit according to the mark scheme. • Where some judgement is required, mark schemes will provide the principles by which marks will be awarded and exemplification may be limited. • When examiners are in doubt regarding the application of the mark scheme to a candidate’s response, the team leader must be consulted. • Crossed out work should be marked UNLESS the candidate has replaced it with an alternative response. Question Number Answer Additional Guidance Mark 1(a) The only correct answer is C A is not correct because abstraction is hiding or removing detail B is not correct because computation is the act of computing D is not correct because evaluation is reaching a conclusion (1) Question Number Answer Additional Guidance Mark 1(b) Award one mark for any of the following up to a maximum of two marks: • The subprogram code only has to be written once / saves development time (1) • The subprogram can be called many times (reusability) (1) • The subprogram only has to be debugged once (1) • It is easier to locate and debug errors (1) • Hides the details of how a function/procedure/code works (abstraction) (1) • Can be used by programmers who don't have the knowledge to write them (1) • Can be grouped into libraries/can be shared with other programmers (1) • Makes programs easier to read/understand (1) • Reduces the overall size of code (1) • Problem can be decomposed into smaller sub-problems (1) • Allows a team to work on a project (1) Do not accept generalisations such as easier/faster/quicker without qualification (2) Question Number Answer Additional Guidance Mark 1(c)(i) Award one mark for any of the following: • 15 (1) (1) Question Number Answer Additional Guidance Mark 1(c)(ii) Award one mark for any of the following: • 11 (1) (1) Question Number Answer Additional Guidance Mark 1(c)(iii) Award one mark for any of the following: • 16, 17, 18, 19 (1) • 16 - 19 (1) • 16, 18 (1) Do not accept 16 on its own. (1) Question Number Answer Additional Guidance Mark 1(d)(i) Award one mark for any of the following: • Code that breaks/violates the rules/grammar of the programming language (1) Do not award credit for an example in isolation such as missing colon, there must be a definition. (1) Question Number Answer Additional Guidance Mark 1(d)(ii) Award up to two marks for a linked explanation, such as: • The program crashes/stops (1) because the operation the computer is asked to do is impossible (1) • The program crashes (1) because the CPU cannot execute one of the instructions in the code (1) For both marks, the expansion must follow/associate with the statement. Do not award credit for an example in isolation such as division by zero. Be careful not to award marks for syntax/logic error (2)