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Trapezoidal Control => Control on better monitors that allows you to adjust the angles of the borders of the screen.
Trinitron => A technology developed by Sony to enhance the clarity of graphics on their monitors. The way this is done is by making the pixels more square.
True Color => The name given to 16.7 million color representation.
True Parity => This term has come about with the advent of logical parity. It simply means the original parity memory.
Truth table => This is a Boolean table that describes the way that a circuit reacts to input values by showing a complete set of possible input values with corresponding outputs.
Tuple => See n-tuple.
Turbo-Pascal => This is Borland's version of the Pascal programming language.
TWAIN => (Toolkit Without An Interesting Name) This is a standard set for scanners to allow them to have a standard interface to software. This allows the use of your favorite graphics package with your favorite scanner without worrying if one will s...
UART => (Universal Asynchronous Receiver Transmitter) This is a chip that standardized serial communications. Its function is to change a byte into a standard sequence of electrical impulses.
Ultra SCSI => SCSI that communicates twice as fast as standard SCSI-2. Normal Ultra-SCSI transfers data at 20 Mbps, and Wide Ultra-SCSI transfers data at 40 Mbps. Similar to Ultra-IDE, Ultra-SCSI works its magic by transferring data on the up AND the...
UNC => (Universal Naming Convention) This is the name given for the naming used when one specifies: \\the sever\the volume\the path\then the file name of a file. So, a UNC will look like this: \\Myserver\Docdrive\Magazine\glossary.doc
UNIX => A lot like DOS, but a MUCH more powerful operating system. It was developed at Bell Labs and is now being developed by many other corporations. It is mainly used as a multi-user server for mainframes, although companies like Novell offer it f...
UPS => (Uninterruptible Power Supply) This is a device that contains a battery and some circuitry to supply your computer with power for a limited time (depending on the battery) if there is any sort of interruption in the outlet power.
URL => (Universal Resource Locator) This is what is used to give Web addresses for HTML, VRML, WAV and other files. It simply contains the Internet name of the machine containing the data and the path to the file. Much like the UNC, except specifical...
USB => (Universal Serial Bus) A technology in the works that will replace the current way that some peripheral devices connect to your computer. It is much faster than serial and parallel communications. It is also much more flexible: it will be able...
Usenet Newsgroups => Also referred to just as "newsgroups," Usenet newsgroups are a huge bunch of Internet discussion groups that replicate across the Internet every so often. If you get a bunch of people together and request a group for yourself, yo...
V.32 => A standard naming convention used in determining modem communications, all starting with "V." This one is for specifying the Hayes standard of bi-directional 9600 baud transmission.
V.32bis => This is the standard that came after V.32 which increased the speed from 9600 baud to 14.4 KB baud.
V.34 => This is the most recent dramatic improvement of modem communications. It has doubled the speed of the V.32bis standard to 28.8 KB.
V.34+ => This standard was made by US Robotics to indicate that their modems are superior to a standard V.34 modem in that they run at 33.6 KB baud instead of the slower 28.8 KB baud.
V.42 => This is the name given to the standard for transmitting at 2400 baud.