NetBSD
WHAT IS BSD? BSD stands for "Berkeley Software Distribution" and is usually referred to as the first Open Source Operating System. Initially called Berkeley Unix, it was developed at the Berkeley University in the 70s as a variant of the Unix OS with some extra features. At the time, it was distributed along its source code despite being proprietary, which led to the creation of 1BSD in 1978 and 2BSD a little over a year later as add-ons to Unix version 6. However, every version of BSD has been using code owned by AT&T, which meant that it involved some hefty licensing fees. Hence, a few third parties were interested in a release of the networking code for the BSD, which led to the creation of Net/1 in June 1989 and Net/2 by Keith Bostic a year and a half later which included most of the utilities found in the original AT&T codes These codes were used for the creation of FreeBSD and notably NetBSD WHAT IS NETBSD? NetBSD in an Open Source Operating System built upon t