TIA
1. <chat> Thanks in advance.
2. <body> Telecommunications Industry Association.
3. <software> The Internet Adapter.
4. <graphics, hardware> Television Interface Adaptor.
(1999-12-06)
Nearby terms:
thumbnail « Thunderbird « thunk « TIA » tick
» TickIT » Tickle
tick
1. A jiffy (sense 1). 2. In simulations, the discrete unit of time that passes
between iterations of the simulation mechanism. In AI applications, this amount
of time is often left unspecified, since the only constraint of interest is the
ordering of events. This sort of AI simulation is often pejoratively referred to
as "tick-tick-tick" simulation, especially when the issue of simultaneity of
events with long, independent chains of causes is handwaved. 3. In the FORTH
language, a single quote character.
[Jargon File]
Nearby terms:
Thunderbird « thunk « TIA « tick » TickIT »
Tickle » tickle a bug
TickIT
A software industry quality assessment scheme.
Nearby terms:
thunk « TIA « tick « TickIT » Tickle » tickle
a bug » tick-list features
Tickle
<text, tool> A text editor, file translator and TCL interpreter for the
Macintosh.
Version 5.0v1. The text editor breaks the 32K limit (like MPW).
The file translation utilities support drag and drop handling via tcl scripts of
BinHex, MacBinary, Apple Computer Single/Double, StuffIt (with engine), Unix
compress, Unix tar and UUencode files as well as text translation.
Tickle implements tcl 7.0 with tclX extensions and Macintosh equivalents of
Unix's ls, pwd, cd commands. It provides Macintosh access to Resource Manager,
Communications Toolbox, OSA Components (and AppleScript), Editions (publish and
subscribe) and Apple Events (including AEBuild and AEPrint). OSA Script support
allows programming of any OSA scripting component within Tickle interpreter
windows. It provides the OSAtcl and OSAJ J/APL extensions and creates "Ticklets"
which are small application programs that carry only the tcl script and use code
in the OSAtcl component to drive an application that allows drag and drop with
tcl scripts. Tickle is scriptable and recordable.
ftp://ftp.msen.com/pub/vendor/ice/tickle/Tickle5.0v1.hqx.
E-mail: <time@ice.com>.
(1994-10-12)
Nearby terms:
TIA « tick « TickIT « Tickle » tickle a bug »
tick-list features » TIFF
tickle a bug
To cause a normally hidden bug to manifest itself through some known series of
inputs or operations. "You can tickle the bug in the Paradise VGA card's
highlight handling by trying to set bright yellow reverse video."
[Jargon File]
Nearby terms:
tick « TickIT « Tickle « tickle a bug »
tick-list features » TIFF » tiger team
tick-list features
(Acorn Computers) Features in software or hardware that customers insist on but
never use (calculators in desktop TSRs and that sort of thing). The American
equivalent would be "checklist features", but this jargon sense of the phrase
has not been reported.
(1995-01-06)
Nearby terms:
TickIT « Tickle « tickle a bug « tick-list
features » TIFF » tiger team » tight loop
TIFF
Tagged Image File Format
Nearby terms:
Tickle « tickle a bug « tick-list features « TIFF
» tiger team » tight loop » tilde
tiger team
(US military jargon) 1. Originally, a team whose purpose is to penetrate
security, and thus test security measures. These people are paid professionals
who do hacker-type tricks, e.g. leave cardboard signs saying "bomb" in critical
defence installations, hand-lettered notes saying "Your codebooks have been
stolen" (they usually haven't been) inside safes, etc. After a successful
penetration, some high-ranking security type shows up the next morning for a
"security review" and finds the sign, note, etc. and all hell breaks loose.
Serious successes of tiger teams sometimes lead to early retirement for base
commanders and security officers (see the patch entry for an example).
2. Recently, and more generally, any official inspection team or special
firefighting group called in to look at a problem.
A subset of tiger teams are professional crackers, testing the security of
military computer installations by attempting remote attacks via networks or
supposedly "secure" communication channels. Some of their escapades, if
declassified, would probably rank among the greatest hacks of all times. The
term has been adopted in commercial computer-security circles in this more
specific sense.
[Jargon File]
Nearby terms:
tickle a bug « tick-list features « TIFF « tiger
team
» tight loop » tilde » TILE Forth
tight loop
<programming> A loop of code that executes without releasing any
resources to other programs or the operating system.
Consider the following pointless BASIC loop that counts upward indefinitely
10 i = i + 1
20 GOTO 10
Run on a single-user system such as MS-DOS this will not cause any
problems. Run on a cooperative multitasking
operating system such as Windows 3, the system would
appear to freeze.
A pre-emptive multitasking operating system such as UNIX or Windows NT would
"steal" cycles away from the program and continue to run other programs.
See also busy-wait and multitasking.
(1999-05-06)
Nearby terms:
tick-list features « TIFF « tiger team « tight
loop » tilde » TILE Forth » Tim Berners-Lee
tilde
<character> "~" ASCII character 126.
Common names are: ITU-T: tilde; squiggle; twiddle; not. Rare: approx; wiggle;
swung dash; enyay; INTERCAL: sqiggle (sic).
Used as C's prefix bitwise negation operator; and in Unix csh, GNU Emacs, and
elsewhere, to stand for the current user's home directory, or, when prefixed to
a login name, for the given user's home directory.
The "swung dash" or "approximation" sign is not quite the same as tilde in
typeset material but the ASCII tilde serves for both (compare angle brackets).
[Has anyone else heard this called "tidal" (as in wave)?]
(1996-10-18)
Nearby terms:
TIFF « tiger team « tight loop « tilde » TILE
Forth » Tim Berners-Lee » time bomb
TILE Forth
<language> A Forth interpreter in C for Unix by Mikael Patel
<mip@sectra.se>. TILE Forth comes with many Forth libraries. It conforms to
the Forth83 standard and is distributed under GPL.
Current version: 2.1, as of 1991-11-13.
Availalbe via FTP from a GNU archive site.
(1991-11-13)
Nearby terms:
tiger team « tight loop « tilde « TILE Forth
» Tim Berners-Lee » time bomb » time complexity
Tim Berners-Lee
<person> The man who invented the World-Wide Web while working at the
Center for European Particle Research (CERN). Now Director of the World-Wide Web
Consortium.
Tim Berners-Lee graduated from the Queen's College at Oxford University,
England, 1976. Whilst there he built his first computer with a soldering iron,
TTL gates, an M6800 processor and an old television.
He then went on to work for Plessey Telecommunications, and D.G. Nash Ltd (where
he wrote software for intelligent printers and a multi-tasking operating
system), before joining CERN, where he designed a program called 'Enquire',
which was never published, but formed the conceptual basis for today's
World-Wide Web.
In 1984, he took up a fellowship at CERN, and in 1989, he wrote the first
World-Wide Web server, "httpd", and the first client, "WorldWideWeb" a hypertext
browser/editor which ran under NEXTSTEP. The program "WorldWideWeb" was first
made available within CERN in December, and on the Internet as a whole in the
summer of 1991.
In 1994, Tim joined the Laboratory for Computer Science (LCS) at the
Massachusetts Institute of Technology (MIT). In 1999, he became the first holder
of the 3Com Founders chair. He is also the author of "Weaving the Web", on the
past present and future of the Web.
In 2001, Tim was made a fellow of The Royal Society.
Tim is married to Nancy Carlson. They have two children, born 1991 and 1994.
http://www.w3.org/People/Berners-Lee/Longer.html.
(2001-06-17)
Nearby terms:
tight loop « tilde « TILE Forth « Tim Berners-Lee
» time bomb » time complexity » Time Complex
Simulator
time bomb
<software, security> A subspecies of logic bomb that is triggered by
reaching some preset time, either once or periodically. There are numerous
legends about time bombs set up by programmers in their employers' machines, to
go off if the programmer is fired or laid off and is not present to perform the
appropriate suppressing action periodically.
Interestingly, the only such incident for which we have been pointed to
documentary evidence took place in the Soviet Union in 1986! A disgruntled
programmer at the Volga Automobile Plant (where the Fiat clones called Ladas
were manufactured) planted a time bomb which, a week after he'd left on
vacation, stopped the entire main assembly line for a day. The case attracted
lots of attention in the Soviet Union because it was the first cracking case to
make it to court there. The perpetrator got 3 years in jail.
[Jargon File]
(2001-09-15)
Nearby terms:
tilde « TILE Forth « Tim Berners-Lee « time bomb
» time complexity » Time Complex Simulator » time
division multiple access
time complexity
<complexity> The way in which the number of steps required by an
algorithm varies with the size of the problem it is solving. Time complexity is
normally expressed as an order of magnitude, e.g. O(N^2) means that if the size
of the problem (N) doubles then the algorithm will take four times as many steps
to complete.
See also computational complexity, space complexity.
(1996-05-08)
Nearby terms:
TILE Forth « Tim Berners-Lee « time bomb « time
complexity » Time Complex Simulator » time
division multiple access » time division
multiplexing
Time Complex Simulator
<simulation> (Tcsim) Complex arithmetic version of Tsim.
Contact: ZOLA Technologies.
(1996-01-18)
Nearby terms:
Tim Berners-Lee « time bomb « time complexity «
Time Complex Simulator » time division multiple
access » time division multiplexing » Time Domain
Reflectometer
time division multiple access
time division multiplexing
Nearby terms:
time bomb « time complexity « Time Complex Simulator
«
time division multiple access » time division
multiplexing » Time Domain Reflectometer » timeout
time division multiplexing
<communications> (TDM) A type of multiplexing where two or more channels
of information are transmitted over the same link by allocating a different time
interval ("slot" or "slice") for the transmission of each channel. I.e. the
channels take turns to use the link. Some kind of periodic synchronising signal
or distinguishing identifier is usually required so that the receiver can tell
which channel is which.
TDM becomes inefficient when traffic is intermittent because the time slot is
still allocated even when the channel has no data to transmit. Statistical time
division multiplexing was developed to overcome this problem.
Compare wavelength division multiplexing, frequency division multiplexing, code
division multiplexing.
(2001-06-27)
Nearby terms:
time complexity « Time Complex Simulator « time
division multiple access « time division
multiplexing » Time Domain Reflectometer »
timeout » time quantum
Time Domain Reflectometer
<hardware, networking> (TDR) An electronic device for detecting and
locating short- or open-circuits in an Ethernet cable. TDRs can also measure how
the characteristic impedance of a line varies along its length.
(1995-12-28)
Nearby terms:
Time Complex Simulator « time division multiple
access « time division multiplexing « Time Domain
Reflectometer
» timeout » time quantum » time-sharing
timeout
A period of time after which an error condition is raised if some event has not
occured. A common example is sending a message. If the receiver does not
acknowledge the message within some preset timeout period, a transmission error
is assumed to have occured.
(1995-11-09)
Nearby terms:
time division multiple access « time division
multiplexing « Time Domain Reflectometer «
timeout » time quantum » time-sharing » Time
Sharing Option
time quantum
time slice
Nearby terms:
time division multiplexing « Time Domain
Reflectometer « timeout « time quantum »
time-sharing » Time Sharing Option » time shifting
time-sharing
<operating system> (Or "timesharing") An operating system feature
allowing several users to run several tasks concurrently on one processor, or in
parallel on many processors, usually providing each user with his own terminal
for input and output. time-sharing is multitasking for multiple users.
(1998-04-24)
Nearby terms:
Time Domain Reflectometer « timeout « time quantum «
time-sharing » Time Sharing Option » time
shifting » Time Simulator
Time Sharing Option
<operating system> (TSO) System software from IBM that provides
time-sharing on an IBM mainframe running in an MVS environment.
(2003-08-15)
Nearby terms:
timeout « time quantum « time-sharing « Time
Sharing Option » time shifting » Time Simulator
» time sink
time shifting
<programming> A technique used to work around problems due to the Year
2000 and the "millennium bug". Time shifting involves translating date fields in
a database back by a fixed number of years to avoid year 2000 problems with the
database management system.
Typically dates are shifted back 28 years so that the occurrence of leap years
and days of the week match with the actual year.
(2003-08-15)
Nearby terms:
time quantum « time-sharing « Time Sharing Option «
time shifting » Time Simulator » time sink »
time slice
Time Simulator
<simulation> (Tsim) A stack-based simulation language.
Contact: ZOLA Technologies.
(1999-10-04)
Nearby terms:
time-sharing « Time Sharing Option « time shifting «
Time Simulator » time sink » time slice »
times-or-divided-by
time sink
(By analogy with "heat sink" or "current sink") A project that consumes
unbounded amounts of time.
[Jargon File]
(1995-02-07)
Nearby terms:
Time Sharing Option « time shifting « Time Simulator
«
time sink » time slice » times-or-divided-by »
time T
time slice
<operating system> (Or "time quantum", "quantum") The period of time for
which a process is allowed to run uninterrupted in a pre-emptive multitasking
operating system.
The scheduler is run once every time slice to choose the next process to run. If
the time slice is too short then the scheduler will consume too much processing
time but if it is too long then processes may not be able to respond to external
events quickly enough.
(1998-11-06)
Nearby terms:
time shifting « Time Simulator « time sink « time
slice
» times-or-divided-by » time T » Time to Live
times-or-divided-by
(By analogy with "plus-or-minus") A term occasionally used when describing the
uncertainty associated with a scheduling estimate, for either humorous or
brutally honest effect. For a software project, the scheduling uncertainty
factor is usually at least 2.
[Jargon File]
(1995-02-07)
Nearby terms:
Time Simulator « time sink « time slice «
times-or-divided-by » time T » Time to Live »
time zone
time T
/ti:m T/ An unspecified but usually well-understood time, often used in
conjunction with a later time T+1. "We'll meet on campus at time T or at Louie's
at time T+1" means, in the context of going out for dinner: "We can meet on
campus and go to Louie's, or we can meet at Louie's itself a bit later."
(Louie's was a Chinese restaurant in Palo Alto that was a favourite with
hackers.) Had the number 30 been used instead of the number 1, it would have
implied that the travel time from campus to Louie's is 30 minutes; whatever time
T is (and that hasn't been decided on yet), you can meet half an hour later at
Louie's than you could on campus and end up eating at the same time.
See also since time T equals minus infinity.
[Jargon File]
(1994-12-12)
Nearby terms:
time sink « time slice « times-or-divided-by «
time T
» Time to Live » time zone » TINC
Time to Live
(TTL) A field in the Internet Protocol header which indicates how many more hops
this packet should be allowed to make before being discarded or returned.
(1994-12-12)
Nearby terms:
time slice « times-or-divided-by « time T « Time
to Live
» time zone » TINC » Tinman
time zone
One of approximately 24 longitudinal divisions of the globe, nominally 15
degrees wide, in which clocks show the same time. Some zones follow the
boundaries of states or territories, others differ from neighbouring zones by
more or less than one hour.
Computers can be programmed to take into account the time zone each user is
working in, which is not necessarily the same as the zone the computer is in.
See also TZ.
(1997-07-20)
Nearby terms:
times-or-divided-by « time T « Time to Live «
time zone
» TINC » Tinman » tinman+
TINC
There Is No Cabal
Nearby terms:
time T « Time to Live « time zone « TINC »
Tinman » tinman+ » TINT
Tinman
<language> The third of the series of DoD requirements that led to Ada.
Written by HOLWG, DoD, Jan 1976.
See Strawman, Woodenman, Ironman, Steelman.
(1976-01-01)
Nearby terms:
Time to Live « time zone « TINC « Tinman »
tinman+ » TINT » tint
tinman+
Macro language for Apple II? Published in DDJ?
Nearby terms:
time zone « TINC « Tinman « tinman+ » TINT »
tint » Tiny
TINT
Interpreted version of JOVIAL.
[Sammet 1969, p. 528].
Nearby terms:
TINC « Tinman « tinman+ « TINT » tint » Tiny
» Tiny BASIC
tint
hue
Nearby terms:
Tinman « tinman+ « TINT « tint » Tiny » Tiny
BASIC » Tiny Basic Interpreter Language
Tiny
1. A language which provides concurrency through message-passing to named
message queues.
2. A tool written by Michael Wolfe <mwolfe@cse.ogi.edu> at Oregon
Graduate Institute of Science & Technology for examining array data dependence
algorithms and program transformations for scientific computations.
Extended Tiny was used to implement the Omega test. Michael Wolfe has also made
extensions to his version of tiny.
(1994-12-12)
Nearby terms:
tinman+ « TINT « tint « Tiny » Tiny BASIC »
Tiny Basic Interpreter Language » Tiny Clos
Tiny BASIC
<language> A dialect of BASIC developed by Dr. Wang [Wong?] in the late
1970s. Tiny BASIC was 2K bytes in size and was loaded from paper tape. It ran on
almost any Intel 8080 or Zilog Z80 microprocessor for which the user could
provide the necessary I/O driver software.
Tiny BASIC was distributed as [the first ever?] freeware. The program listing
contained the following phrases "All Wrongs reserved" and "CopyLeft", he
obviously wasn't interested in money.
See also Tiny Basic Interpreter Language.
[More info?]
(1997-09-12)
Nearby terms:
TINT « tint « Tiny « Tiny BASIC » Tiny Basic
Interpreter Language » Tiny Clos » TIP
Tiny Basic Interpreter Language
<language> (TBIL) The inner interpreter of Tom Pittman's set of Tiny
Basics in Dr Dobb's Journal.
(1997-09-12)
Nearby terms:
tint « Tiny « Tiny BASIC « Tiny Basic Interpreter
Language » Tiny Clos » TIP » TIPL
Tiny Clos
A core part of Common Lisp Object System (CLOS) ported to Scheme and rebuilt
using a MOP (Metaobject Protocol). This should be interesting to those who want
to use MOPs without using a full Common Lisp or Dylan.
The first release works with MIT Scheme 11.74.
ftp://parcftp.xerox.com/pub/mops/. E-mail: Gregor Kiczales
<gregor@parc.xerox.com>. Mailing list: mops (administered by
<gregor@parc.xerox.com>).
(1992-12-14)
Nearby terms:
Tiny « Tiny BASIC « Tiny Basic Interpreter Language
«
Tiny Clos » TIP » TIPL » tip of the ice-cube
TIP
1. Texas Instruments Pascal.
2. A Unix program for interactive communication via serial lines.
Unix manual page: tip(1).
Nearby terms:
Tiny BASIC « Tiny Basic Interpreter Language « Tiny
Clos «
TIP » TIPL » tip of the ice-cube » tired iron
TIPL
1. Teach IPL. An interpretive IPL teaching system.
[Sammet 1969, p. 393].
2. A dialect of IGL.
Nearby terms:
Tiny Basic Interpreter Language « Tiny Clos « TIP «
TIPL
» tip of the ice-cube » tired iron » tits on a
keyboard
tip of the ice-cube
[IBM] The visible part of something small and insignificant. Used as an ironic
comment in situations where "tip of the iceberg" might be appropriate if the
subject were at all important.
[Jargon File]
Nearby terms:
Tiny Clos « TIP « TIPL « tip of the ice-cube
» tired iron » tits on a keyboard » tj
tired iron
[IBM] Hardware that is perfectly functional but far enough behind the state of
the art to have been superseded by new products, presumably with sufficient
improvement in bang-per-buck that the old stuff is starting to look a bit like a
dinosaur.
Nearby terms:
TIP « TIPL « tip of the ice-cube « tired iron
» tits on a keyboard » tj » Tk
tits on a keyboard
<jargon> Small bumps on certain keycaps to help touch-typists find the
home keys (ASDF and JKL;) without looking. They are nearly always on the "F" and
"J" of a QWERTY and the "5" of a numeric keypad. The Macintosh, perverse as
usual, has them on the "D" and "K" keys.
This term is based on the vernacular American expression "as useful as tits on a
boar" (or boar-hog, bull, bullfrog, or many other variants), meaning "not
useful".
[Jargon File]
(1998-02-25)
Nearby terms:
TIPL « tip of the ice-cube « tired iron « tits on
a keyboard » tj » Tk » tk
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