Track-while-scan; also: tail warning system

Track While Scan. Radar mode that uses pulse-Doppler radar to target a contact, providing detailed tracking information at short range.

two-way simultaneous. Mode that allows a router configured as a primary SDLC station to achieve better utilization of a full-duplex serial line. When TWS is enabled in a multidrop environment, the router can poll a secondary station and receive data from that station while it sends data to or receives data from a different secondary station on the same serial line.

Abbreviation for Triple Word Score. See Triple Word Score and Bonus Square.

(abbrev.) Triple Word Score

Trader Workstation -The Inderactive Brokers Jave based application used to enter orders. The application is available in a stand alone or browser based version.

Tivoli Workload Scheduler

The Wilderness Society

Transient Water System