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  2. System software - Wikipedia

    en.wikipedia.org/wiki/System_software

    A kernel is the core part of the operating system that defines an Application programming interface for applications programs (including some system software) and an interface to device drivers. Device drivers and devices firmware, including computer BIOS , provide basic functionality to operate and control the hardware connected to or built ...

  3. Systems programming - Wikipedia

    en.wikipedia.org/wiki/Systems_programming

    Systems programming, or system programming, is the activity of programming computer system software.The primary distinguishing characteristic of systems programming when compared to application programming is that application programming aims to produce software which provides services to the user directly (e.g. word processor), whereas systems programming aims to produce software and software ...

  4. Information technology - Wikipedia

    en.wikipedia.org/wiki/Information_technology

    Information science. Information technology ( IT) is a set of related fields that encompass computer systems, software, programming languages, and data and information processing, and storage. [1] IT forms part of information and communications technology (ICT). [2] An information technology system ( IT system) is generally an information ...

  5. Computer programming - Wikipedia

    en.wikipedia.org/wiki/Computer_programming

    Computer programming or coding is the composition of sequences of instructions, called programs, that computers can follow to perform tasks. [1] [2] It involves designing and implementing algorithms, step-by-step specifications of procedures, by writing code in one or more programming languages. Programmers typically use high-level programming ...

  6. Software - Wikipedia

    en.wikipedia.org/wiki/Software

    Definition. Software can be defined more narrowly as the instructions executed by the computer hardware, or more broadly including other concepts, tools, and methods needed to make an executable system on computer hardware, such as design documents, specifications, and testing suites.

  7. Computer program - Wikipedia

    en.wikipedia.org/wiki/Computer_program

    A computer program is a sequence or set [a] of instructions in a programming language for a computer to execute. It is one component of software, which also includes documentation and other intangible components. [1] A computer program in its human-readable form is called source code.

  8. Software system - Wikipedia

    en.wikipedia.org/wiki/Software_system

    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 ...

  9. Operating system - Wikipedia

    en.wikipedia.org/wiki/Operating_system

    The development of computer operating systems have materially aided the problem of getting a program or series of programs on and off the computer efficiently. One of the more famous examples that is often found in discussions of early systems is the Atlas Supervisor, running on the Atlas in 1962.