MINIX

MINIX is a family of Unix-like operating systems based on a microkernel architecture, written by American-Dutch computer scientist Andrew S. Tanenbaum. First released in 1987, it was designed as a clone of the Unix operating system and one that could run on affordable, Intel 8086-based home computers (IBM PC and PC/AT) for use in classrooms by computer science students at universities. Its name comes from mini-Unix, and it has no relation to the older MINIX from Digital Systems House, Inc. based on AT&T Unix code. It was initially proprietary source-available, but was relicensed under the BSD 3-Clause to become free and open-source in 2000. MINIX was ported to various additional platforms in the 1990s, and version 2.0, released in 1997, was the first to be POSIX compliant. Starting with MINIX 3, released in 2005, the primary aim of development shifted from education to the creation of a highly reliable and self-healing microkernel OS.