AQA A LEVEL COMPUTER SCIENCE Study guides, Class notes & Summaries

Control Unit - Answer A register in the cpu that controls and coordinates the activities of the cpu directing the flow of data Bus - Answer a series of connectors that transfer signals between internal components Memory Read - Answer causes data from the addressed location in RAM to be placed on the data bus Memory Write - Answer Causes data on the data bus to be written into the addressed location. Bus Request - Answer Indicates that a device is requesting the use of the d...

A sound is sampled and recorded digitally. The sound is sampled at a rate of 48 000 samples per second (Hz) for 3 minutes using a 16-bit sample resolution. Calculate the size of the digital recording, giving your answer in mebibytes. Give your answer rounded to 2 decimal places. You should show your working. [2 marks] Answer mebibytes 0 1 . 2 The highest frequency component in a different sound is 15 000 Hz. What is the minimum sampling rate that should be used when recording this sound ...

AQA A-level COMPUTER SCIENCE 7517/2 Paper 2 Version: 1.0 Final Question Paper & Mark scheme [MERGED] June 2023

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AQA A-Level Computer Science 2023(Paper 2 ONLY) with answers

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AQA A LEVEL COMPUTER SCIENCE PAPER 2 JUNE 2022 (7517/2). Most reliable for best scores

AQA A-LEVEL COMPUTER SCIENCE PAPER 1 MARK SCHEME LATEST VERSION A-level COMPUTER SCIENCE 7517/1 Paper 1 Mark scheme June 2020 Version: 1.0 Final *206A7517/1/MS* Mark schemes are prepared by the Lead Assessment Writer and considered, together with the relevant questions, by a panel of subject teachers. This mark scheme includes any amendments made at the standardisation events which all associ...