Type may refer to:

Science and technology

Computing

Typing Typing is the process of writing or inputting text by pressing keys on a typewriter, computer keyboard, mobile phone or calculator. It can be distinguished from other means of text input, such as handwriting and speech recognition. Text can b ...

, producing text via a keyboard, typewriter, etc. *

Data type In computer science and computer programming, a data type (or simply type) is a set of possible values and a set of allowed operations on it. A data type tells the compiler or interpreter how the programmer intends to use the data. Most progra ...

, collection of values used for computations. *

File type A file format is a standard way that information is encoded for storage in a computer file. It specifies how bits are used to encode information in a digital storage medium. File formats may be either proprietary or free. Some file format ...

TYPE (DOS command) In computing, is a command in various command-line interpreters ( shells) such as COMMAND.COM, cmd.exe, 4DOS/ 4NT and Windows PowerShell used to display the contents of specified files on the computer terminal. The analogous Unix command is . Im ...

, a command to display contents of a file. *

Type (Unix) In Unix and Unix-like operating systems, type is a command that describes how its arguments would be interpreted if used as command names. Function Where applicable, type will display the command name's path. Possible command types are: * shell ...

, a command in POSIX shells that gives information about commands. *

Type safety In computer science, type safety and type soundness are the extent to which a programming language discourages or prevents type errors. Type safety is sometimes alternatively considered to be a property of facilities of a computer language; that is ...

, the extent to which a programming language discourages or prevents type errors. *

Type system In computer programming, a type system is a logical system comprising a set of rules that assigns a property called a type to every "term" (a word, phrase, or other set of symbols). Usually the terms are various constructs of a computer progra ...

, defines a programming language's response to data types.

Mathematics

Type (model theory) In model theory and related areas of mathematics, a type is an object that describes how a (real or possible) element or finite collection of elements in a mathematical structure might behave. More precisely, it is a set of first-order formulas in ...

* Type theory, basis for the study of type systems * Arity or type, the number of operands a function takes * Type, any proposition or set in the intuitionistic type theory * Type, of an entire function#Order and type, entire function ** Exponential type

Biology

* Type (biology), which fixes a scientific name to a taxon * Dog type, categorization by use or function of domestic dogs

Lettering

* Type is a design concept for lettering used in typography which helped bring about modern textual printing in the publishing industry * Type can refer to a font style, e.g., "italic type" * Movable type, in letterpress printing * Sort (typesetting), in letterpress printing * Typesetting, the composition of text by means of arranging types * Typeface, the overall design of lettering used in a collection of related fonts * Type design, the art and process of designing typefaces * Type foundry, a company that designs or distributes typefaces * Typewriter, a mechanical or electromechanical machine for writing characters similar to those produced by a printer's movable type

Sociology

* Ideal type * Normal type * Typification

Other uses

* Type (acting), a way of characterizing an actor by the sort of role they are well-suited for or fit into easily, or by their performance style * Type & antitype, in Typology (theology), Typology, in Christian theology and Biblical exegesis * Type (song), "Type" (song), a 1990 song by the band Living Colour * Type (designation), a model numbering system used for vehicles or military equipment ** Type Museum, museum about the above * Architectural type, classification of architecture by functional types (houses, institutions), morphological types or historical types Architectural style subcategories * U.S. Navy type commands, senior commands for the specific "type" of weapon system (i.e., naval aviation, submarine warfare, surface warships) employed * Type of Constans, a 648 edict issued by Byzantine Emperor Constans II * Type (metaphysics), in philosophy * Type-token distinction, in logic, linguistics, and computer programming