Character Set - A collection of characters that a computer recognises from their binary representation., ASCII - 7-bit character set consists of 128 characters, Pixels - small dots that make up an image, Metadata - Extra data stored in a file which gives information about the file's properties, Resolution - The number of pixels in a bitmap image, Analogue - A continuous signal that can't be processed by a computer, Sample rate - The number of audio samples that our taken per second, Compression - The process of making the size of a file smaller, lossless - Temporarily removing data from a file to decrease the file size, Lossy - Permanently removing data from the files to decrease the file size, Bitmap - A graphic that is made up of pixels, Unicode - A large character set that attempts to include all possible characters, Binary - A counting system using Base - 2, Hexadecimal - A counting system using base - 16 , Denary - A number system using base - 10 , Nibble - 4 bits, Binary Shift - Moving the bits in a binary number left or right, and filling gaps with 0's, Colour Depth - The number of bits used for each pixel in an image file, Sampling - The process of converting analogue signals to digital data,

Data Representation

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