AQA•GCSE•Computer Science
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Fundamentals of Data Representation
Number systems, character encoding, images, and sound
Practice 40 subtopics in Fundamentals of Data Representation. All questions match the AQA GCSE specification.
About Fundamentals of Data Representation
Fundamentals of Data Representation is a key topic in the AQA GCSE Computer Sciencespecification. This topic covers number systems, character encoding, images, and sound.
Master all 40 subtopics below with unlimited AI-generated questions. Each subtopic page includes sample questions and the ability to generate unlimited practice questions with detailed solutions.
All Subtopics (40)
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Binary (base 2)Denary (base 10)Hexadecimal (base 16)Converting binary to denaryConverting denary to binaryConverting binary to hexadecimalConverting hexadecimal to binaryConverting denary to hexadecimalConverting hexadecimal to denaryBitsNibblesBytesKilobytesMegabytesGigabytesTerabytesPetabytesBinary additionOverflowBinary shiftsLeft shift (multiply by 2)Right shift (divide by 2)ASCIIExtended ASCIIUnicodeCharacter setsPixelsResolutionColour depthCalculating image file sizeMetadataSamplingSample rateBit depthCalculating sound file sizeNeed for compressionLossy compressionLossless compressionHuffman codingRun-length encoding (RLE)
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