Thoth was a real-time operating system which it was designed to be portable over a large set of machines. Both the system and application programs which used it were written in a high-level language. Because the system was implemented by the same software on different hardware, it had the same interface to user programs. Hence, application programs which use Thoth were highly portable. Thoth encouraged structuring programs as networks of communicating processes by providing efficient interprocess communication primitives. [1] [2]

X Window System branch
Preceded by
Thoth Followed by
V (operating system)