Sold: Sharp PC-2500

[rprosperi]

(12-22-2018 03:19 PM)Sylvain Cote Wrote:  After reading both service manuals, they are externally different and except for memory cards, they do not share the same peripherals.
Internally, it is obvious that the PC-2500 is based on the PC-1350, they share the same core components, same memory maps, same BASIC ROM,
the PC2500 has an extra 32KB ROM that they seems to bank switch with the BASIC ROM (same logical address).

PC-2500 at old-computers.com : description & images

Yes, they share the same ESR-H CPU (believe it or not, that stands for Electronic Slide Rule; I worked with the guy in Sharp that named it), LCD and general internal architecture, but the 2500 was packaged totally differently. The mentioned CE-140P was a printer that let a 1350 (and 1360, etc.) dock on the printer base, and the total 2500 size was about 1/3 larger, to accommodate a 'near full sized' keyboard.

The 2500 was sold through VAR channels with custom ROMs, though I believe only Japanese custom ROMs were used, possibly some in Europe as well.