Node:videotex, Next:virgin, Previous:video toaster, Up:= V =

videotex n. obs.

An electronic service offering people the privilege of paying

to read the weather on their television screens instead of having

somebody read it to them for free while they brush their teeth.

The idea bombed everywhere it wasn't government-subsidized,

because by the time videotex was practical the installed base of

personal computers could hook up to timesharing services and do

the things for which videotex might have been worthwhile better

and cheaper. Videotex planners badly overestimated both the

appeal of getting information from a computer and the cost of

local intelligence at the user's end. Like the gorilla arm effect, this has been a

cautionary tale to hackers ever since. See also vannevar.

Node:virgin, Next:virtual, Previous:videotex, Up:=

V =

virgin adj.

Unused; pristine; in a known initial state. "Let's bring up a

virgin system and see if it crashes again." (Esp. useful after

contracting a virus through SEX.) Also, by extension, buffers and the

like within a program that have not yet been used.

Node:virtual, Next:virtual beer, Previous:virgin, Up:=

V =

virtual adj.

[via the technical term `virtual memory', prob. from the term

`virtual image' in optics] 1. Common alternative to logical; often used to refer to the artificial

objects (like addressable virtual memory larger than physical

memory) simulated by a computer system as a convenient way to

manage access to shared resources. 2. Simulated; performing the

functions of something that isn't really there. An imaginative

child's doll may be a virtual playmate. Oppose real.

The Jargon File, Version 4.2.2, 20 Aug 2000 · 第 1750 / 1941 题