An array is a systematic arrangement of similar objects, usually in rows and columns. Array may refer to:

Music

• In twelve-tone and serial composition, the presentation of simultaneous twelve-tone sets such that the sums of their horizontal segments form a succession of twelve-tone aggregates

• Array mbira, a musical instrument

• Spiral array model, a music pitch space

Science

• Telescope array, a group of telescopes, mirror segments, or radio telescope antennas used to provide high resolution images of astronomical objects

• Microarray, a lab-on-a-chip which can measure multiple analytes

Mathematics and statistics

• Standard array in coding theory

Matrices, a rectangular array of numbers in rows and columns

• Costas array

• Monge array

• Holors

• Orthogonal array

• Intersection array, a kind of regular graph

Computing

• Array (data structure), an arrangement of data in computer memory

• Array (data type), used in a programming language to specify a variable that can be indexed

or various kinds of the above, such as:

• Bit array or bit vector

• Dynamic array, allocated at run time

• Jagged array, an array of member arrays which can be of different lengths

• 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

• Associative array, an abstract data structure model composed of key-value pairs, often implemented as a hash table or search tree

• Asynchronous array of simple processors

• Disk array, such as the RAID

• Gate array, including a field-programmable gate array (FPGA)

• ICL Distributed Array Processor, an array processor for the ICL

Integrated circuit packages:

• Ball grid array

• pin grid array

• land grid array

• Processor array

• Programmable Array Logic (PAL), a systematic way to implement Boolean functions

• Reconfigurable datapath array, a flexible data processing architecture

• Systolic array, a hardware architecture

• Transistor array, an integrated circuit

• Video Graphics Array (VGA), a display adapter and many variants thereof

• Wi-Fi array, a wireless networking device

Technology

• Antenna array

• Array gain, a telecommunications parameter

• Array processing of multichannel signals (not to be confused with array programming)

• Color filter array, placed over an imaging array

• Field emitter array, an electron source

• Halbach array, an arrangement of magnets

• Linear diode array used in image scanners

• Microphone array

• Parametric array of transducers

• Phased-array optics

• Photovoltaic array

• Staring array, an imaging sensor

• Towed array sonar

Organisations

• ARRAY, an independent film distribution company

• Array Networks, a computer networking company

• Array Collective, a Belfast-based artist-activist collaborative project