Will this ES/1 run on my old IBM Series/1 machine or only in conjunction with an Personal System/1 programmable workstation? Which support of DL/1 and PL/1 will be supplied?
It will run on any traditional BIOS machine with VESA video support, CHS or LBA disk access, and PS/2 mouse/keyboard ports or emulation through BIOS, giving a DOS-like environment, but instead of text-based console windows it will be graphical console windows and a true 32-bit programming environment. It will also offer a limited version of a type of Presentation Manager for traditional graphics apps, but very lightweight. I do want the desktop to have a similar feel to OS/2, so it will be familiar to OS/2 users.
IBM's OS/2 was designed for the Personal System/2 (PS/2). It runs also on XT286 and AT machines, so the label was quite misleading. Microsoft simply renamed OS/2 3.0 to Windows NT and raised the revision number by one. And now they're using simply the Windows or Windows Server brand for versions later than 6.x.
You should better use an acronym like EBICP/SE (Extended Binary Incompatible Control Program/System Extension). Everybody likes PCMCIA, DFDSM, DISOSS or EHLLAPI. Short acronyms like APAR or RACF are not popular and should be avoided.
:-) I know there's a name out there. I'll stumble across it. For now, I'll keep the ES/1 and ES/2 as they're just codenames for the work I suppose.
Right now I'm trying to figure out how to proceed because I ran into that 640 KB barrier very quickly. A few paths ahead, most of them difficult. :-)