DATA COMMUNICATIONS

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This section of the site is dedicated to helping to build a better understanding of the term 'Data Communication'. Listed from A-Z is a glossery of terms involved in computing, and the Internet. Click on a each individual link to visit each individual letter.

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

quasi-language

n. A derogatory term for any programming language that, because of deficiencies, is not suitable for any serious work.

 

query

n. 1. The process of extracting data from a database and presenting it for use. 2. A specific set of instructions for extracting particular data repetitively.

 

question mark

n. In some operating systems and applications, a wildcard character often used to represent any other single character. The question mark is one of two wildcard characters supported by the MS-DOS, Windows NT, and OS/2 operating systems. See also asterisk.

 

queue

n. A multi-element data structure from which (by strict definition) elements can be removed only in the same order in which they were inserted; that is, it follows a first-in-first-out (FIFO) constraint. There are also several types of queues in which removal is based on factors other than order of insertion, for example, some priority value assigned to each element. See also deque, element (definition 1). Compare stack.

 

QuickDraw

n. On the Apple Macintosh, the built-in group of routines within the operating system that control the display of graphics and text. Application programs call QuickDraw for on-screen displays. See also Toolbox.

 

QuickDraw 3-D

n. A version of the Macintosh QuickDraw library that includes routines for doing 3-D graphics calculations. See also QuickDraw.

 

QuickTime

n. The multimedia extensions to the Apple Macintosh System 7 software, also available for Windows. QuickTime can synchronize up to 32 tracks of sounds, video images, or MIDI or other control output.

 

Quick Viewers

n. A set of file viewers supplied with Windows 95.

 

quit1

n. 1. An FTP command that instructs the server to drop the current connection with the client from which it received the command. 2. A command in many applications for exiting the program.

 

quit2

vb. 1. To stop in an orderly manner. 2. To execute the normal shutdown of a program and return control to the operating system. Compare abort, bomb2, crash2 (definition 1), hang.

 

QWERTY keyboard

n. A keyboard layout named for the six leftmost characters in the top row of alphabetic characters on most keyboards--the standard layout of most typewriters and computer keyboards. Compare Dvorak keyboard, ergonomic keyboard.