On 11/24/2014 5:13 PM, David Kerber wrote: > On 11/24/2014 7:57 PM, Ralf Quint wrote: >> On 11/24/2014 11:08 AM, Carl Spitzer wrote: >>> Isn't the Z80 what the Space Shuttle and space Telescope used until >>> the last decade. I seem to remember my old RS-4P was a Z80 chip. CWSIV >> Nope, the Space Shuttle's main computer was from IBM, based on a >> radiation-hardened version of a 32bit System/360 type CPU (just Google >> "APA-101S") > I had thought the space shuttle ran on a hardened version of a 386? > The in later years used "glass cockpit" panels were 80386 based, but not the actual main computer(s) (there are 5 of them for redundancy). The original APA-101B even used wired "core" memory (a whole 1MB of it) while the later upgraded APA-101S used radiation hardened silicon based memory
JFGI... Ralf --- This email has been checked for viruses by Avast antivirus software. http://www.avast.com ------------------------------------------------------------------------------ Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration & more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751&iu=/4140/ostg.clktrk _______________________________________________ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
