Operating System links

FreeBSD - the free UNIX from Berkeley

Nice BSD..

OpenBSD

In my opinion a very good BSD implementation, focuses on security.

NetBSD

BSD that runs on more different platforms than any other OS i guess

Digital's OpenVMS

Not much to say. Just VMS.

OpenVMS hobbyist license

There are payable OpenVMS hobby licenses available..

Microware OS-9 RTOS

- they are giving out free OS-9 evaluation CDs

QNX

Microkernel OS, available for free to private persons.

FreeDOS

Attempt to create a free non-MS DOS...

`"A good OS won't keep you from doing stupid things,
cause that would also keep you from doing the useful things."`