As I recall OS/2 was written for IBM by Microsoft. Seems particularly interesting to me that multithreading and preemptive multitasking were well established around 1980 in the VAX/VMS line from Digital, and at a similar time in Unix. The VAX had hardware access control and paging, so our VAX-11/780 ran well for some years for a few users at a time with only 1/2 MB of physical memory. We increased the memory as the operating system got bloated enough to demand it.
DOS reminded me of the Kludge Monitor for the IBM 7044 back in the 1960s. It could load a job, turn over control to the job, and when the job completed, aborted, or timed out, reload itself. Later versions did do a bit more. There was another graphical operating system that beat Windows 3.1 hands down in a head to head competition at HAL-PC in Houston I attended. Was the name GeoWorks or something like that? Choppy At 02:14 AM 5/31/03 -0500, you wrote: >I came across this ( >http://www.mit.edu:8001/activities/os2/faq/os2faq-toc.html ) site on the web. >If you want to know about OS/2 it might interest you. I didn't know much >about OS/2-- my previous knowledge of OS/2 was limited to ---"OS/2 is a >superior OS than M$ Window$". But this article tells more about OS/2. > >Below is a portion of what the article said about OS/2.
