Computer Science > AQA Questions and Marking Scheme > GCSE COMPUTER SCIENCE 8520/1 Paper 1 Computational Thinking and Problem-Solving Mark scheme June 202 (All)
GCSE COMPUTER SCIENCE 8520/1 Paper 1 Computational Thinking and Problem-Solving Mark scheme June 2020 Version: 1.0 Final
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Qu Part Marking guidance Total marks 01 1 Mark is for AO1 (recall) (A pixel is a) single point (of colour) in an image/smallest (addressable) part of an image; A. Picture element A. alternative... s to the word point eg dot, element 1 01 2 Mark is for AO2 (apply) 64 // 26 ; 1 01 3 3 marks for AO2 (apply) 500/500kB/500 kilobytes;;; If incorrect answer is given then award a maximum of 2 marks for working as follows: indicating the colour depth is 5; multiplying (800x1000) by the colour depth (even if colour depth is incorrect); correct conversion from bits to kilobytes; 3 MARK SCHEME – GCSE COMPUTER SCIENCE – 8520/1 – JUNE 2020 5 Qu Part Marking guidance Total marks 01 4 3 marks for AO2 (apply) the i column having all values 0-5 in order; the first three rows of the image column; the last three rows of the image column; Max 2 marks if any additional values given. i image 0 / 1 // 2 //* 3 / 4 /* 5 /*/ 3 02 3 marks for AO1 (understanding) Start at the beginning (of the array/list); compare each element/item until the value being searched for is found; or the end of the array/list is reached;... [Show More]
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