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Array
A contiguous block of memory used to hold multiple instances of a single data type.
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Data Structure
A structure that encapsulates data in a certain form. For example, a struct globs different types of data together, while an array collects many instances of the same type of data together into a list.
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Data Type
This refers to how a chunk of memory is interpreted. The data type controls whether a certain sets of bits is interpreted as a character, or a short, or an integer, and so on.
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Element
An element is one location in an array. An element is the same as a cell of an array.
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Cell
A cell is one location in an array. A cell is the same as an element of an array.
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Index
A number used to access an element in an array. An index is written in square brackets after the array name: array[5].
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Subscript
Another name for an index.