OpenBSD

	OpenBSD
	; Only two remote holes in the default install, in a heck of a long time!!
Architecture:	multiplatform
This Version:	OpenBSD 6.1 (Apr 11, 2017)
Date Released:	1996

OpenBSD is a fork of NetBSD that is more focused on security and 'correctness' of code. The OpenBSD project is lead by Theo De Radt.

Homepage

http://www.openbsd.org/ Has all the information for all the relases

Port Name	Description
alpha	Digital Alpha-based systems
amd64	AMD64-based systems
armish	ARM-based appliances (by Thecus, IO-DATA, and others)
hp300	Hewlett-Packard HP 9000 series 300 and 400 workstations
hppa	Hewlett-Packard Precision Architecture (PA-RISC) systems
i386	Standard PC and clones based on the Intel i386 architecture and compatible processors
landisk	IO-DATA Landisk systems (such as USL-5P) based on the SH4 cpu
mac68k	Motorola 680x0-based Apple Macintosh with MMU
macppc	Apple New World PowerPC-based machines, from the iMac onwards
mvme68k	Motorola 680x0-based VME systems
mvme88k	Motorola 881x0-based VME systems
sgi	SGI MIPS-based workstations
socppc	Freescale PowerPC SoC-based machines
sparc	Sun sun4, sun4c and sun4m class SPARC systems
sparc64	Sun UltraSPARC systems
vax	Digital VAX-based systems
zaurus	Sharp Zaurus C3x00 PDAs

I'd recommend the site http://www.deadly.org/ for articles relating to OpenBSD

OpenBSD can run under all kinds of emulation. Here are a few I know off hand.

This article is not as complete coverage of the topic as it could be. You can help by expanding it.

OpenBSD
Only two remote holes in the default install, in a heck of a long time!!
Architecture:	multiplatform
This Version:	OpenBSD 6.1 (Apr 11, 2017)
Date Released:	1996