The late, great TRS-80

_I_ agree with you. Sticking with HP for the moment, they sold Games Pacs and Games Solution books for many of their _calculators_, including the HP67, which has a 1-line numerical display. Odd thing about me is that I actually prefer that sort of game to the more modern ones. About 12 years ago some friends instroduced me to 'Doom'. I played it for about 10 minutes and decided it really wasn't the sort of thing I enjoyerd. But I've playes some of the HP67 games for hours. [Amazingly there was even a 'Grpahics Solution Book' for the HP75, a handheld computer with a 1-line alphanumeric display with no dot addressing at all (the hardware didn't allow it, there as a character generator in one of the chips). Said book contained programs for bar charts, pie charts, etc. Mind you, it did need an HP7470 Opt 003 (HPIL) plotter...] I would agree, and I made that comment in my first post in this thread. I said something like 'It's stretching the defintion of micro somewhat...' The processor in the 9830 (and indeed in all the 98x0 machines) is on 4 PCBs, each containing around 20 chips (mostly TTL, but there are 9 programmed PROMs in there too, 7 for the mcirocode and 2 for th ALU, which is implemented as a look-up table) There are also bits of the CPU on other boards, in particular the M (memory address) register, the T (memory data) register, and the gating around them. So perhaps 100 chips would be a fairer count for this processor. It's bit-serial, 16 bits wide (if you see what I mean). There are 2 accumulators (A and B), a program counter P, the current instruction register (Q), I/O register, extension register (E) and the M and T registers I've already mentioned. -tony