The Temple Operating System

ZealOS File Downloads (100% Public Domain)

ZealOS is a free, public domain, open source, x86_64, non-preemptive multi-tasking, multi-cored, ring-0-only, single-address-map 
(identity-mapped), non-networked, PC operating system.  Paging is, basically, not used.

The CIA obsfucates to foil India, China, Russia and Korea.  They make things more complicated than necessary.  ZealOS is more 
simple than necessary.  It is obnoxiously simple.  If you look at this "Hello World" joke, you can see why Terry capped the line 
count of TempleOS at 100,000.

God said TempleOS must be perfect, so backward compatibility is not promised.

Terry Davis wrote all 80,849 lines of TempleOS over the last 17.9 years, including the 64-bit compiler.  He was a professional 
operating system developer since 1990 when he worked on Ticketmaster's VAX OS.