Operating environment: Difference between revisions

Revision as of 14:03, 1 February 2018

Revision as of 14:21, 21 February 2018

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In the mid 1980s, [[text-based user interface|text-based]] and [[graphical user interface|graphical]] user interface operating environments surrounded [[DOS]] operating systems with a [[shell (computing)|shell]] that turned the user's [[computer monitor|display]] into a [[menu (computing)|menu]]-oriented "[[desktop metaphor|desktop]]" for selecting and running [[IBM PC compatible|PC]] applications. These operating environment systems gave users much of the convenience of [[integrated software]] without locking them into a single package.

== Description ==

An operating environment is the [[Deployment environment|environment]] in which users run [[application software]]. The environment consists of a [[user interface]] provided by an applications manager and usually an [[application programming interface]] (API) to the applications manager. An operating environment is usually ''not'' a full [[operating system]], but is a form of [[middleware]] that rests between the OS and applications. For example, the first version of [[Microsoft Windows]], [[Windows 1.0]], was not a full operating system, but a [[GUI]] laid over DOS with an API of its own. Similarly, the [[IBM U2]] system operates on both [[Unix]]/[[Linux]] and [[Windows NT]]. Usually, the user interface is [[text-based user interface|text-based]] or [[graphical user interface|graphical]], rather than a [[command-line interface]] (e.g., [[DOS]] or the [[Unix shell]]), which is often the interface of the underlying operating system.

== History ==