CS> @MSGID: 1:202/354.0 2f3430ea
CS>  RM> I am familiar with pSOS+ on a 25mhz 68040 VMEbus computer which takes
CS>  RM> about 15 microseconds for an ISR and 35-70 microseconds for a context
CS>  RM> switch. Millisecond response time is not impressive..   :-)

CS> OS/2 can be made more suitable for "hard" real-time with
additional hardware. 
CS>  For example, you could use a coprocessor board that handles the
"hard"
CS> real-time requirements of sub-millisecond response times and let the
PC running
CS> OS/2 handle everything else.

Quite right! Our acquistion board should have at least a summation 
circuit and probably a dma controller.

regards
-Bob-

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