HIGHLY RELIABLE AND SECURE SYSTEMS

This section lists operating systems designed with very high reliability or security as a principal goal. Some of these systems are designed to control specialized architectures which include features to support this goal.

AUROS
Reliable Operating System for the fault-tolerant minicomputer AURAGEN System 4000. Early 1980s [Glazer 1984].
DSU
Data Secure Unix. A Security kernel for Unix developed at UCLA. Late 1970s [Popek et al 1979].
GUARDIAN
Operating System for Tandem NonStop Computers, featuring high reliability. Early 1980s [Serlin 1984].
KeyKOS
Capability based OS for the IBM/370. Early 1980s [Hardy 1985].
KSOS
Kernelized Secure Operating system. UNIX-like OS with a secure kernel. Late 1970s. [McCauley & Drongoski 1979].
NonStop
An OS for the Tandem Computers featuring high reliability through redundant components. Late 1970s [Bartlett 1981].
Perpos
Perpetual Processing OS for Computer Consoles Power 55/5. 68000-based multiple CPUs. UNIX-based system featuring high reliability. Early 1980s [Serlin 1984].
PSOS
An Experimental Provably Secure Operating System. Late 1970s [DeLashmutt 1979].
STRATUS
OS for Stratus-32 Computers. Early 1980s [Computerworld 1984].
Synthesis
Fault tolerant OS for Synapse N+1 system. Early 1980s [Serlin 1984].
VOS
Virtual OS. Operating System for STRATUS computers featuring high reliability. Early 1980s [Serlin 1984].