Is anyone familiar with PC-51 and/or CoreNET?
These are IBM 5110/5120 related tools developed by an individual in the
My understanding is PC-51 was an emulator that ran BASIC programs from the
IBM 5110. One keyword new in the IBM 5110 was the "FORMS" keyboard, and
you could define input fields (including type-formatting constraints, like
sequence of letters and numbers) -- and once defined, you could
relatively-easily store all the contents of the fields to a file (on tape
or disk). I'm not entirely sure what format PC-51 supported (e.g. could
read in ASCII text files containing the BASIC programs?). But I always
imagined those customer data entry forms in old Radio Shack or Sears stores
-- large department stores -- being developed in something like this.
And CoreNET, I think was some kind of "null modem cable" that let the IBM
5110 communicate with an IBM PC 5150. The IBM 5110 has 3x DB25 connectors
at the backside (and 1x DB15 cable like what became the "standard" joystick
port on some systems in mid-late 1980s). The external tape and disk system
would use these connectors -- with software driven from the ROS. I've
always imagined it would be possible to "bit bang" across these external IO
pins with some PALM-assembly -- the machine should be fast enough to encode
7-bit ASCII at 300 baud across those pins, maybe 1200. I'm not sure if
CoreNET used or required any async card or the parallel communication card
(that did IEEE-488), i.e. not sure if it was more than just a cable.
But what's more interesting - apparently Sony is now the owner of both
these assets, PC51 and CoreNET. Maybe Hal Prewitt sold it to them? Why
would Sony be interested in it? Anyone happen to know anyone who works at
Sony, or ideas on where to start on even "asking them" about it? Might be
a lost cause these days.
Anyone happen to have a copy of the old manuals of either of these?