Name of the character set that uses 7 or 8 bits to store each character - ASCII, Name of the character set that uses 16 bits to store each character - unicode, Command that returns ASCII character when a number is entered - CHR (CODE_TO_CHAR), Command that returns ASCII number when a character is entered - ORD (CHAR_TO_CODE), A single point of colour in an image - pixel, type of digital image that is made up of many rows of pixels - bitmap, type of digital image that is stored as geometric information about each shape/colour etc - vector, name for additional data that must be stored with an image (alongside the data about pixel colours) - metadata, examples of metadata that would be stored with a bitmap - resolution, colour depth, date created, the total number of pixels in an image (expressed as width x height) - resolution, how many bits are needed per pixel to store the colour information - colour depth, what would the colour depth need to be for an image with 8 colours? - 3 bits per pixel, the name for how many bits in total are needed to store the data about an image - file size, example of a device that can convert an analogue sound wave into digital data - microphone, example of a device that can digital data into an analogue sound wave - headphones, the term for how many bits are needed to store the different values that a sound wave can be measured at - sample resolution, the term for how many measurements of a sound wave are taken each second - sample frequency, Two factors that can affect the quality of a digital image - resolution and colour depth, Two factors that can affect the quality of a digital sound file - resolution and sample frequency,

Data Representation 2

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