HP-41 - Memory modules

[Massimo Gnerucci]

(04-10-2019 12:44 PM)rprosperi Wrote:  

(04-10-2019 11:29 AM)Massimo Gnerucci Wrote:  This brings back memories from 30 years ago, in a similar but different context...
:)

Funny you mention this, when the DOS Extended vs. Expanded RAM confusion and product battles were occurring in the late 80's it made me think of the 41 main vs. eXtended RAM confusion in the early 80s!

Indeed, I remember that - at the time - I thought that I already went thru all of that! ;)

(04-10-2019 12:44 PM)rprosperi Wrote:  Remember LIM EMS?

Sure!
And I remember how much expensive were all those RAM cards.

(04-10-2019 12:44 PM)rprosperi Wrote:  In DOS, I ended up using QEMM with a config.sys startup line more than 80 chars long specifying the various options, address holes, usage for cache, etc., etc. Fun times.

Ditto!
And I stayed with the dynamic duo QEMM + DV386 up to 1996, when Windows 95, not running under DV, forced me to embrace the Win world.