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computing assessment - Coggle Diagram
computing assessment
Data representation
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Character set - Alphanumeric characters and symbols that a computer can recognise from binary codes.
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Metadata - Information about the image such as size, date created, author .
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Lossy - Permanently removes data such as duplicated data elements For
example .mp3, .jpeg
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Photo editing
CMYK - Colour method using cyan, magenta, yellow and black (key). Used for printers.
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RGB - Colour method using red, green and blue.Used onscreen.
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Hi resolution - 300 dpi, used for professional printing.
Lo resolution - 72dpi, used for online images.
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Database
Database - A database is a collection of information that is organized so that it can be easily accessed, managed and updated
Database table - In databases, a collection of records representing a type of item.
Record - Collection of fields that represent a single entity, such as a person.
Data types - Text e.g. S Jones, Number e.g. 4,6, Currency e.g. £3.00, Boolean e.g. True/False Yes/No, Date e.g. 12/12/2012
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