NetBSD
Proper noun
Meaning
NetBSD
a Unix-like operating system that is derived from Berkeley Software Distribution (BSD), notable for running on 57 different platforms
Examples
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.
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).
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.
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.
More recently, NetBSD and OpenBSD support various VAX models and some work has been done on porting Linux to the VAX architecture.
NetBSD 2.x+, and DragonFly BSD implement LWPs as kernel threads (1:1 model).