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Software. Software consists of computer programs that instruct the execution of a computer. [1] Software can be defined broadly to include design documents, specifications, and testing suites. [2] The history of software is closely tied to the development of digital computers in the mid-20th century.
Software engineering is an engineering approach to software development. [1][2][3] A practitioner, called a software engineer, applies the engineering design process to develop software. The terms programmer and coder overlap software engineer, but they imply only the construction aspect of typical software engineer workload.
A software system is a system of intercommunicating components based on software forming part of a computer system (a combination of hardware and software). It "consists of a number of separate programs, configuration files, which are used to set up these programs, system documentation, which describes the structure of the system, and user ...
Software is a set of programmed instructions stored in the memory of stored-program digital computers for execution by the processor. Software is a recent development in human history and is fundamental to the Information Age. Ada Lovelace 's programs for Charles Babbage 's Analytical Engine in the 19th century are often considered the founder ...
System software is a generic term referring to the computer programs used to start and run computer systems including diverse application software and networks. Computer programming tools, such as compilers and linkers, are used to translate and combine computer program source code and libraries into executables, which are programs that fall ...
Software architecture is the set of structures needed to reason about a software system and the discipline of creating such structures and systems. Each structure comprises software elements, relations among them, and properties of both elements and relations. [1][2] The architecture of a software system is a metaphor, analogous to the ...
An operating system (OS) is system software that manages computer hardware and software resources, and provides common services for computer programs. Time-sharing operating systems schedule tasks for efficient use of the system and may also include accounting software for cost allocation of processor time, mass storage, peripherals, and other ...
Software development. Software documentation is written text or illustration that accompanies computer software or is embedded in the source code. The documentation either explains how the software operates or how to use it, and may mean different things to people in different roles. Documentation is an important part of software engineering.