1. uninterruptible power supply. 2. A source level C debugger that runs under X11 or SunView by Mark Russell . Ups includes a Cinterpreter which allows you to add fragments of code simply by editing them into the source window. Version 2.1. Ported to Sun, DECstation, VAXUltrix, HLHClipper. . Mailing list: ups-users-request@ukc.ac.uk. Unofficial enhancements by Rod Armstrong . (1991-05-20)