A successor to CLU, from LCS at MIT. Argus supports distributed programming through guardians (like monitors, but can be created dynamically) and {atomic actions} (indivisible activity). It also has {cobegin} and coend. ["Argus Reference Manual", B. Liskov et al., TR-400, MIT/LCS, 1987]. ["Guardians and Actions: Linguistic Support for Robust, Distributed Programs", B. Liskov et al, TOPLAS 5(3):381-404 (1983)]. (1995-12-28)