Proper noun
NetBSD
a Unix-like operating system that is derived from Berkeley Software Distribution (BSD), notable for running on 57 different platforms
Around the same time, the NetBSD project was founded by a different group of 386BSD users, with the aim of unifying 386BSD with other strands of BSD development into one multi-platform system. Source: Internet
SunOS 5.2 through SunOS 5.8 as well as NetBSD 2 to NetBSD 4 implemented a two level model, multiplexing one or more user level threads on each kernel thread (M:N model). Source: Internet
FreeBSD and NetBSD (both derived from 386BSD ) were released as free software when the USL v. BSDi lawsuit was settled out of court in 1993. Source: Internet
To fill the void left by removing vi, their 1992 386BSD distribution adopted Elvis as its vi replacement. 386BSD's descendants, FreeBSD and NetBSD followed suit. Source: Internet
More recently, NetBSD and OpenBSD support various VAX models and some work has been done on porting Linux to the VAX architecture. Source: Internet
NetBSD 2.x+, and DragonFly BSD implement LWPs as kernel threads (1:1 model). Source: Internet