Q; QA; qa; QA4; QAM; Qbasic; QBE; QCA; QCIF; qdjanus; QDOS; QEMM386; QIC; QL; Qlambda; QLISP; QLOG; QMQP; QMTP; QMW; Q'NIAL; QNX; QoS; QPE; QSAM; QT-OBJECTS; QTRADER; quad; Quadralay Corporation; Quadrature Amplitude Modulation; quadruple bucky; quadruplex; Quake; Qualcomm; quality; quality assurance; quality control; quality of service; Quality Systems & Software Ltd.; quantifier; Quantify; quantum; quantum bogodynamics; quantum cell; quantum cell wire; quantum computer; quantum computing; quantum dot; Quantum-dot Cellular Automata; quarter; Quarter CIF; Quarter Inch Cartridge; Quay Financial Software; QUEASY; Queen Mary and Westfield College; Queens Problem; Queens Puzzle; Queen's University; QUEL; query; Query By Example; query expansion; ques; Quest; question mark; queue; Queued Sequential Access Method; QUICK; quick-and-dirty; QuickDraw; Quick Mail Queueing Protocol; Quick Mail Transfer Protocol; Quicksilver; Quicksort; QuickTime; quiesce; quiesce time; QUIKSCRIPT; QUIKTRAN; QUIN; quine; Quintec-Objects; quintillion; Quintus Prolog; quote chapter and verse; quotient; Qu-Prolog; Quty; quux; qux; QWERTY; QX;