On 2000-10-12 [EMAIL PROTECTED] <Chad> said:
>I don't know if they totally stopped making Microchannel. IBM's
>RS6000 Unix line of computers used Microchannel as well. In fact I
>have heard rumors that a few of the RS6K computers still use it,
>although, I know RS6k uses PCI as well. IBM's Gearbox Industrial
>control computers used Microchannel too.
My source for the fate of MCA comes from Barron's 1998 edition of the
*Dictionary of Computer and Internet Terms*, where it says:
"IBM discontinued Micro Channel products in 1995 on the ground that
the PCI bus provides equal or better performance."
>I have also heard that the PS/2 line was IBM's most profitable line
>of computers at the time. They sold loads and loads of them to the
>business community. The hospital you work for, as an example :-)
>ISA ended up in the home, but Microchannel ended up mainly in the
>workplace.
The "source" for my remarks about the PS/2-MCA systems was from the
hospital's IS manager -- but what does *he* know... ;-) The IS
department here treats any old MCA systems with abhorrence...
An advantage of the MCA system was its allowance for multiple CPUs,
but, of course, its bus was incompatible with other systems. If
IBM enjoyed (at least temporarily) an increase of profit from the
PS/2-MCA systems, it was rather coercive because of their existing
market dominance.
Jerry >>>> USR Courier HST--V.32 | IBM PC/XT & PC Color Display <<<<
>>>>> PC DOS 3.3 & WordStar 3.30p | 20 MB HDD & 360K FDD <<<<<
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