Array

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An array is a systematic arrangement of similar objects, usually in rows and columns.

Specifically, it may refer to:

Video Array

An array in twelve-tone and serial composition is the presentation of two or more simultaneous twelve-tone sets in such a way that the sums of their horizontal segments form a (columnar) succession of twelve-tone aggregates
Array mbira, a musical instrument
Array system layout, on the array mbira
Spiral array model, a music pitch space

A telescope array, also called astronomical interferometer, such as the:

Generally, a collection of data items that can be selected by indices computed at run-time, including:

Array data structure, an arrangement of items at equally spaced addresses in computer memory
Array data type, used in a programming language to specify a variable that can be indexed
Associative array, an abstract data structure model composed of key-value pairs, often implemented as a hash table or search tree

or various kinds of the above, such as:

Bit array or bit vector
Dynamic array, allocated at run time
Jagged array, a multidimensional array where the rows have different lengths individually
Parallel array of records, with each field stored as a separate array
Sparse array, with most elements omitted, to store a sparse matrix
Variable-length array

or various related concepts:

Array programming, using matrix algebra notation in programs (not the same as array processing)
Array slicing, the extraction of sub-arrays of an array

or also:

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Various arrangements of multiple individual components to create a single system, such as:

An antenna array, such as a phased array, a tower array, etc.
Array gain, a telecommunications parameter
Array processing of multichannel signals (not to be confused with array programming)
Asynchronous array of simple processors
Color filter array, placed over an imaging array
Disk array, such as the RAID
Field emitter array, an electron source
Gate array, including a field-programmable gate array (FPGA)
Halbach array, an arrangement of magnets
ICL Distributed Array Processor, an array processor for the ICL
Integrated circuit packages
- Ball grid array
- pin grid array
- land grid array
Linear diode array used in image scanners
Microphone array
Parametric array of transducers
Phased-array optics
Photovoltaic array
Processor array
Programmable Array Logic (PAL), a systematic way to implement boolean functions
Reconfigurable datapath array, a flexible data processing architecture
Staring array, an imaging sensor
Systolic array, a hardware architecture
Towed array sonar
Transistor array, an integrated circuit
Video Graphics Array (VGA), a display adapter and many variants thereof
Wi-Fi array, a wireless networking device