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DEC /dek/ n.

1. v. Verbal (and only rarely written) shorthand for

_decrement_, i.e. `decrease by one'. Especially used by

assembly programmers, as many assembly languages have a

dec mnemonic. Antonym: inc. 2. n. Commonly used abbreviation for Digital

Equipment Corporation, later deprecated by DEC itself in favor of

"Digital" and now entirely obsolete following the buyout by

Compaq. Before the killer

micro revolution of the late 1980s, hackerdom was closely

symbiotic with DEC's pioneering timesharing machines. The first

of the group of cultures described by this lexicon nucleated

around the PDP-1 (see TMRC).

Subsequently, the PDP-6, PDP-10,

PDP-20, PDP-11 and VAX were all foci of large and important

hackerdoms, and DEC machines long dominated the ARPANET and

Internet machine population. DEC was the technological leader of

the minicomputer era (roughly 1967 to 1987), but its failure to

embrace microcomputers and Unix early cost it heavily in profits

and prestige after silicon got

cheap. Nevertheless, the microprocessor design tradition owes a

major debt to the PDP-11 instruction set, and every one of the

major general-purpose microcomputer OSs so far (CP/M, MS-DOS,

Unix, OS/2, Windows NT) was either genetically descended from a

DEC OS, or incubated on DEC hardware, or both. Accordingly, DEC

was for many years still regarded with a certain wry affection

even among many hackers too young to have grown up on DEC

machines.

DEC reclaimed some of its old reputation among techies in the

first half of the 1990s. The success of the Alpha, an

innovatively-designed and very high-performance killer micro, helped a lot. So did

DEC's newfound receptiveness to Unix and open systems in general.

When Compaq acquired DEC at the end of 1998 there was some

concern that these gains would be lost along with the DEC

nameplate, but the merged company has so far turned out to be

culturally dominated by the ex-DEC side.

The Jargon File, Version 4.2.2, 20 Aug 2000 · 第 471 / 1941 题