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)