Data Representation 0.0 / 5 ? ComputingRepresenting dataGCSEAQA Created by: screechfoxCreated on: 29-03-17 12:06 Binary A number system containing two digits - 0 and 1. Known as Base 2. 1 of 16 Bit Depth The number of bits available to store an audio sample. 2 of 16 Bit Rate The number of bits processed per second. 3 of 16 Denary The usual human number system - 0 to 9. Also known as decimal or Base 10. 4 of 16 Floating Point The data type that stores decimal numbers. 5 of 16 Integer The data type that stores whole numbers. 6 of 16 Hexadecimal A sixteen digit number system - 0 to 9 and A to F. Also known as Base 16. 7 of 16 Byte A unit of data containing 8 bits / 2 nibbles. 8 of 16 Colour Depth The amount of bits available for colours in an image. 9 of 16 Compression A method of reducing file sizes, particularly for images, audio, and video. 10 of 16 Lossless A type of compression that encodes digital files without losing detail. Image types that use this compression are GIF and PNG. 11 of 16 Lossy A type of compression that reduces file sizes by deleting data. This should never be used on text. An image type which uses this is JPEG. 12 of 16 Metadata Data about data. It can contain things such as keywords and author data. 13 of 16 Resolution The fineness of detail that can be seen in an image. The higher the resolution, the more detail it holds. It is measured in dpi. 14 of 16 Sample Rate How many times data is sampled per second. 15 of 16 Bit The smallest unit of data. 16 of 16
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