well-behaved

1. [primarily MS-DOS] Said of software conforming to system interface guidelines and standards. Well-behaved software uses the operating system to do chores such as keyboard input, allocating memory and drawing graphics. Oppose ill-behaved.

2. Software that does its job quietly and without counterintuitive effects. Especially said of software having an interface spec sufficiently simple and well-defined that it can be used as a tool by other software. See cat.

[Jargon File]

well-connected

Said of a computer installation, asserts that it has reliable electronic mail links with the network and/or that it relays a large fraction of available Usenet newsgroups. "Well-known" can be almost synonymous, but also implies that the site's name is familiar to many (due perhaps to an archive service or active Usenet users).

well-known port

<networking>

A TCP or {UDP port with a number in the range 0-1023 (originally 0-255). The well-known port numbers are assigned by the IANA and on most systems can only be used by system (or root) processes or by programs executed by privileged users.

Last updated: 2002-10-06

well-ordered set

<mathematics>

A set with a total ordering and no infinite descending chains. A total ordering "<=" satisfies 

 x <= x

 x <= y <= z  =>  x <= z

 x <= y <= x  =>  x = y

 for all x, y: x <= y or y <= x
In addition, if a set W is well-ordered then all non-empty subsets A of W have a least element, i.e. there exists x in A such that for all y in A, x <= y.

Ordinals are isomorphism classes of well-ordered sets, just as integers are isomorphism classes of finite sets.

Last updated: 1995-04-19

Nearby terms:

weighted search ♦ well-behaved ♦ well-connected ♦ well-known port

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