TUNIS (Toronto University System) was a Unix-likeoperating system, developed at the University of Toronto in the early 1980s. TUNIS was a portable operating system compatible with Unix V7, but with a completely redesigned kernel, written in Concurrent Euclid. Programs that ran under Unix V7 could be run under TUNIS with no modification.
Tunis ( ) is both the capital and the largest city of Tunisia. The greater metropolitan area of Tunis, often referred to as Grand Tunis, holds some 2,700,000 inhabitants.