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tweak vt.

1. To change slightly, usually in reference to a value. Also

used synonymously with twiddle. If

a program is almost correct, rather than figure out the precise

problem you might just keep tweaking it until it works. See frobnicate and fudge factor; also see shotgun debugging. 2. To tune or bum a

program; preferred usage in the U.K.

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tweeter n.

[University of Waterloo] Syn. perf,

chad (sense 1). This term (like woofer) has been in use at Waterloo since

1972 but is elsewhere unknown. In audio jargon, the word refers

to the treble speaker(s) on a hi-fi.

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TWENEX /twe'neks/ n.

The TOPS-20 operating system by DEC

-- the second proprietary OS for the PDP-10 -- preferred by most

PDP-10 hackers over TOPS-10 (that is, by those who were not ITS or WAITS

partisans). TOPS-20 began in 1969 as Bolt, Beranek & Newman's

TENEX operating system using special paging hardware. By the

early 1970s, almost all of the systems on the ARPANET ran TENEX.

DEC purchased the rights to TENEX from BBN and began work to make

it their own. The first in-house code name for the operating

system was VIROS (VIRtual memory Operating System); when

customers started asking questions, the name was changed to SNARK

so DEC could truthfully deny that there was any project called

VIROS. When the name SNARK became known, the name was briefly

reversed to become KRANS; this was quickly abandoned when someone

objected that `krans' meant `funeral wreath' in Swedish (though

some Swedish speakers have since said it means simply `wreath';

this part of the story may be apocryphal). Ultimately DEC picked

TOPS-20 as the name of the operating system, and it was as

TOPS-20 that it was marketed. The hacker community, mindful of

its origins, quickly dubbed it TWENEX (a contraction of `twenty

TENEX'), even though by this point very little of the original

TENEX code remained (analogously to the differences between

AT&T V6 Unix and BSD). DEC people cringed when they heard

"TWENEX", but the term caught on nevertheless (the written

abbreviation `20x' was also used). TWENEX was successful and very

popular; in fact, there was a period in the early 1980s when it

commanded as fervent a culture of partisans as Unix or ITS -- but

DEC's decision to scrap all the internal rivals to the VAX

architecture and its relatively stodgy VMS OS killed the DEC-20

and put a sad end to TWENEX's brief day in the sun. DEC attempted

to convince TOPS-20 users to convert to VMS, but instead, by the late 1980s, most of the

TOPS-20 hackers had migrated to Unix.

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twiddle n.

1. Tilde (ASCII 1111110, ~). Also called

`squiggle', `sqiggle' (sic -- pronounced /skig'l/), and

`twaddle', but twiddle is the most common term. 2. A small and

insignificant change to a program. Usually fixes one bug and

generates several new ones (see also shotgun debugging). 3. vt. To

change something in a small way. Bits, for example, are often

twiddled. Twiddling a switch or knobs

implies much less sense of purpose than toggling or tweaking it;

see frobnicate. To speak of

twiddling a bit connotes aimlessness, and at best doesn't specify

what you're doing to the bit; `toggling a bit' has a more

specific meaning (see bit

twiddling, toggle). 4.

Uncommon name for the twirling

baton prompt.

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twilight zone n. //

[IRC] Notionally, the area of cyberspace where IRC operators live. An op

is said to have a "connection to the twilight zone".

The Jargon File, Version 4.2.2, 20 Aug 2000 · 第 1701 / 1941 题