Analogue Data - Data represented by values which vary continuously, e.g. time, live music, Amplitude - Is the height of the vibration (wave), and this determines how loud the sound is, ASCII - A numeric code used to represent 128 specific characters in computer systems, including 0-9, A-Z, and a-z. ASCII = American Standard Code for Information Interchange, Binary - A base two number system typically using the two symbols 0 and 1 to represent switches as being either off or on. This system is particularly suited to digital computers containing switches in the form of integrated circuits compromising many circuits compromising many transistor switches, Bit depth - A number of bits available to represent a pixel's colour (also known as colour depth), Bit map (raster) - A bitmap is a map of bits that form a particular picture. The alternate process to vector images which are created mathematically. Rasterising is the process of creating a bit-map., Bit - A binary digit. The smallest digital data item of a computer can process. A binary digit can have only two values, most often represented by either a 0 or 1, Data - Information in the unorganised or raw form; the representation of information using numerical codes, Data type - Category of data defining its possible values and its methods of storage and processing by a computer, e.g. text, graphics, audio, Discrete data - Discrete data: Data represented by fixed values rather than continuous spectrum of value, e.g. integers, alphabets, File format - Particular structure used to store various data files e.g. jpeg, tif, gif are different file formats for storing bitmap images, Frequency - Is the speed of the vibration of a sound wave (how often the waves are made), and this determines the pitch of the sound., MIDI - musical instrument digital interface, converts analogue to digital and controls the characteristics of a sound., Information - Data that has been given meaning by people; data given context and organisation, Sample rate - Describes the number of samples taken each second when when digitising analogue sound data to create discrete, digital data, Unicode - A method for digital encoding text from most of the world's writing systems. Includes ASCII as a subset., Vector - Images represented by geometric descriptions such as points, lines, curves and shapes. Vector images are drawn using mathematical formulas., Byte - Package of 8 bits,

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