IBM Academic Operating System

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Academic Operating System
Developer IBM
Written in C
OS family 4.3BSD Unix
Working state Historic
Latest release AOS43 / December 22, 1988
Marketing target Academic institutions
Platforms ROMP

Academic Operating System (AOS) was IBM's version of 4.3BSD Unix for the IBM RT. It was offered to academic institutions as an alternative to AIX, the usual RT operating system.

AOS had a few extra features, compared to standard 4.3BSD, notably NFS, and an almost ANSI C-compliant C compiler.

A later version of AOS existed that was derived from 4.3BSD-Reno, but it never was widely distributed.

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