Q

Q BAND

Freq. between 36 and 46 gigahertz.

QBE

See Query-By-Exmple.

QEMM386

A 386 expanded memory manager from Quarterdeck Corporation.

QFP

See Quad Flat Pack

QPSK

Quaternary phase-shift keyed

QTX

Quartex

QUAD FLAT PACK

An integrated circuit case style that has pins on all four sides.

QUADRATURE

Two square wave signals out of electrical phase by 90 degrees.

QUERY

1. A specific request for data or instructions. 2. A request for information from a database using specific conditions; for example, a request for a list of all customers with balances greater than $1,000.

QUERY-BY-EXAMPLE

(QBE) A program product developed by IBM to work in conjunction with DB2, a mainframe relational DBMS. QBE is used to write queries graphically.

QUICKTIME

Apple Computer's video environment (like Microsoft's Video For Windows). Quicktime video files must be converted to *.AVI format to run under Microsoft's Video For Windows. Indeo™ video technology is supported under MacOS.

QUIESCENT

At rest - specifically, the condition of a circuit when no input signal is applied to it.

QUOTE

Quote of the Day Protocol