When Radio Shack introduced the TRS-80 Color Computer in 1980, it was the first mass-produced 6809 computer system. You may have even “heard” OS-9 without knowing it, as it was part of early 1980s music synthesizers from Fairliight, and was in audio playback devices used by radio stations and even Walt Disney World. OS-9 was part of the 2070 traffic controller specification for intersection traffic lights. This allowed it to be used in deeply embedded devices. OS-9 could also be ran completely from ROM with no file system required. OS-9 computers allowed many simultaneous users to be logged in via serial terminals at the same time, each running applications or developing code. It was a Unix-like environment with multi-user support, multitasking, and a unified I/O system. In its day, OS-9 was a stunning achievement. In the years that followed, OS-9 grew and evolved, initially by being enhanced for the Motorola 68000 family of processors, then later Intel x86, PowerPC, StrongARM, Sparc, MIPS, Hitatchi SH-3/4 and probably some others that time has forgotten about. In 1980, Microware Systems Corporation released the OS-9 operating system for the still-new Motorola 6809 processor. Links to where to get these files separately are in the article below.) OS-9: The story so far… (But seriously, you should really never just run some random zip file someone posts to a blog. You can also just download a zip for Windows here or this zip for Mac OS X. From there, type “ DOS” to boot into NitrOS9 Ease of Use. Then run xroar.exe (or xroar.app for Mac) to load up a virtual CoCo 3, then. Where “nf” contains the following text: machine coco3 – Corrected information on the company that originally released NitrOS9 (thanks to L.
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