DSP

Digital signal processor. A special-purpose microprocessor designed to handle signal-processing applications very quickly. DSPs are used in several classes of computer hardware, including sound cards, modems, telephony boards that handle sound and modem functions and hardware that handles audio and video compression in real time. When peripheral makers tout their DSP-based hardware, they're usually referring to chips from Analog Devices or IBM/TI that can be reprogrammed with microcode.

NT-1

Network terminator-1. An NT-1 is an interface box that converts ISDN data into something a PC can understand (and vice versa). It works a little like a cable TV descrambler for ISDN signals, and is often built in to ISDN adapters.

Script

A script is a series of OS commands. The term "batch file" means much the same thing, but is a bit dated. Typically the same sort of situations in which one would say DOS instead of OS, it would also be appropriate to say batch file instead of script. Scripts can be run like programs, but tend to perform simpler tasks. When a script is run, it is always interpreted.