Questions: Data representation
Pick a question type. Each time you get new numbers. Free ones are marked free.
Binary, denary and hexadecimal
- Binary to denaryConvert, 1 mark, free
- Denary to binaryConvert, 1 mark, free
- Hexadecimal to denaryConvert, 2 marks, free
- Denary to hexadecimalConvert, 2 marks, free
- Binary to hexadecimalConvert, 1 mark, free
- Hexadecimal to binaryConvert, 1 mark, free
- Units of dataCalculate, 1 mark, free
- Largest number in n bitsState, 1 mark, free
- Bits needed for some valuesCalculate, 1 mark, Plus
- Bases and units: factsIdentify, 1 mark, free
- Compare values in different basesIdentify, 1 mark, Plus
- 16-bit binary to hexadecimalConvert, 2 marks, Plus
- Binary units: kibibytes and mebibytesCalculate, 1 mark, free
Binary addition and shifts
- Binary additionCalculate, 2 marks, free
- Binary addition with overflowCalculate, 2 marks, Plus
- Binary shiftsCalculate, 2 marks, free
- Shifts that lose bitsCalculate, 2 marks, Plus
- Adding three binary numbersCalculate, 2 marks, Plus
- Binary arithmetic: factsIdentify, 1 mark, free
Negative numbers in binary
- Two's complement to denaryConvert, 2 marks, Plus
- Denary to two's complementConvert, 2 marks, Plus
- Two's complement rangeState, 2 marks, Plus
- Subtraction with two's complementCalculate, 3 marks, Plus
- Two's complement: which is negative?Identify, 1 mark, Plus
- Adding two's complement numbersCalculate, 2 marks, Plus
- Arithmetic right shift on two's complementCalculate, 2 marks, Plus
- Overflow in two's complementCalculate, 2 marks, Plus
- Limits of a fixed number of bitsIdentify, 1 mark, Plus
Characters and images
- Character codes in binaryConvert, 2 marks, Plus
- Storing textCalculate, 2 marks, Plus
- Character sets: factsIdentify, 1 mark, Plus
- Image file sizeCalculate, 2 marks, Plus
- Colour depth and coloursCalculate, 1 mark, Plus
- A black and white bitmapWrite down, 2 marks, Plus
- Images: factsIdentify, 1 mark, Plus
- Hex colour codesCalculate, 2 marks, Plus
- Image size backwardsCalculate, 2 marks, Plus
- Image size in kibibytesCalculate, 2 marks, Plus
- Decimal and binary prefixesIdentify, 1 mark, Plus
Sound and compression
- Sound file sizeCalculate, 2 marks, Plus
- Sound: factsIdentify, 1 mark, Plus
- Run length encodingWrite down, 3 marks, Plus
- Decode run length encodingWrite down, 1 mark, Plus
- Huffman codingCalculate, 3 marks, Plus
- Decode a Huffman codeWrite down, 2 marks, Plus
- Compression: factsIdentify, 1 mark, Plus
- Compression choices (6 marks)Discuss, 6 marks, Plus
- Sound: how long is the recording?Calculate, 2 marks, Plus
- Sample intervalCalculate, 2 marks, Plus
AQA, Pearson Edexcel and OCR are registered trade marks of their owners. Brainlag Learn is independent: it is not affiliated with or endorsed by any exam board, and every question on it is original.