Temporary variable variable "temp" as follows, so as to preserve the data from "a" as it is being overwritten by "b": Temporary variables are usually named with identifiers that abbreviate the word "temporary", such as "temp", "tmp" or simply "t", or with common metasyntactic variable names, the most common of which are "foo", "bar", "baz" (see also foobar). Computer hardware is designed to exploit the behaviour of temporary data: a cache or register file may contain temporaries internally to a microprocessor, such that they never need to be committed to main memory (hence consuming no external memory bandwidth). Temporary variable In computer
The purpose of a system is what it does The purpose of a system is what it does The purpose of a system is what it does (POSIWID) is a systems thinking heuristic coined by Stafford Beer. Stafford Beer coined the term POSIWID and used it many times in public addresses. In his address to the University of Valladolid, Spain, in October 2001, he said "According to the cybernetician, the purpose of a system is what it does. This is a basic dictum. It stands for bald fact, which makes a better starting point in seeking understanding than the familiar attributions of good intention, prejudices about expectations, moral judgment,