× The internal search function is temporarily non-functional. The current search engine is no longer viable and we are researching alternatives.
As a stop gap measure, we are using Google's custom search engine service.
If you know of an easy to use, open source, search engine ... please contact support@midrange.com.


  1.  Home
  2. MIDRANGE-L
  3. April 2006

Re: Every day emulation

For those in nostalgia land 5250 emulation was spawned by software
written by Joe Frank (josephgfrank.org) for a 5280 which was a key to
disk machine that happened to be based on the intel 8080 chip and used a
 pgm system called DE RPG (data entry).  Joe wrote some assembler code
that allowed this machine to become a 5251 mod 12 to a S34/6/8.  That
was the first "5250 emulation" ever built.

When the IBM PC was introduced running on the same chip set Joe moved
his software over to that box along with an SDLC card.  It was great.
We could suddenly use PC's as remote terminals to a S34.  My first PC
cost $5,000 and it had a 10MB hard drive which kicked ass over the dual
360kb floppy systems.

Joe then wrote a file transfer pgm called ETU (emulator transfer
utility) which is still used today.

Jerry

As an Amazon Associate we earn from qualifying purchases.

This thread ...
Replies:
Follow On AppleNews
Return to Archive home page | Return to MIDRANGE.COM home page

This mailing list archive is Copyright 1997-2024 by midrange.com and David Gibbs as a compilation work. Use of the archive is restricted to research of a business or technical nature. Any other uses are prohibited. Full details are available on our policy page. If you have questions about this, please contact [javascript protected email address].

Operating expenses for this site are earned using the Amazon Associate program and Google Adsense.