#: 17734 S15/Hot Topics
    15-Mar-93  14:40:42
Sb: #17530-New Product Announcement
Fm: Lee Veal 74726,1752
To: Walter  J Schilling 70312,3406

 Microware Systems Corporation
 1900 N.W. 114th St.
 Des Moines, Ia.  50322

 (515) 225-1929

 OS-9 has versions that run on Motorola 6809 or Hitachi 6309,
                     and       Motorola 680x0 processors.

 OS-9000 is an enhanced version of OS-9 that is written in C (instead of
assembly like its predecessor) that runs on Intel 80386 and higher processors
as well as the high end of the Motorola 680x0 family.  C makes it portable, but
for performance considerations some or the deep kernel routines are done in
assembly.

In many ways the OS-9(000) family of operating systems resemble Unix.  However,
as I understand it, Unix while is multi-tasking and multi-user, it is not
what's referred to as a real-time operating system.  OS9 has a pre-emptive
interupt system.  OS9 is also ROMable which makes it very handy for black-box
applications.  Chances are you've used an OS-9 system at some time in your life
without knowing it.  (I've been told that the do-it-yourself electronic scales
at some post offices are run by atROM-based OS-9 system under the covers.  And
that's just one.  FermiLab uses an OS-9 system.  NASA uses OS-9, I'm told on
the shuttle.)

There are experts in the forum here that are far more advance in the use hf
OS-9, but I'm sold on its viability and vitality.

Lee



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