3270 controller simulation

Al Kossow aek at bitsavers.org
Tue Nov 19 10:48:04 CST 2019

On 11/19/19 8:43 AM, Al Kossow via cctalk wrote:
> On 11/18/19 7:34 PM, Frank McConnell wrote:
>> Wall Data (5250 emulator, maybe 3270 too)
> yes, both,  'Rumba' which supported several different boards/drivers

I've also been chasing down the history of the ASICs used on 'Irma' boards
and you can see the chain of acquistions. SMC and UMC were even in the
Irma ASIC business but it's unclear if they did their own firmware or copied
someone elses. I need to sit down with my notes since it gets really
confusing. National, for example, built a coprocessor ASIC (DP8344) but
sold a boxed PC card product with an SMC part on it.

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