Very similar Bob! I ran the AMRAD CBBS (the original microcomputer BBS software by Ward Christensen) on an Altair and North Star 5-1.4 hard-sector floppies. The AMRAD CBBS was one of the first in the country. It started on a 6800 single-board computer at Bob Bruninga's (yes the same WB4APR of APRS fame) house. Then, I ran it on the Altair, which I still have. I remember every time Bob added memory to the 6800 (all messages were stored in RAM), he had to change the series-resistor from the power supply. No voltage regulators!
I also still have some Xerox 820s, mofified for packet radio operations. In addition to the Imsai mentioned earlier, I have one Xerox 820 that still booted as of a year ago. The CBBS Altair had a Tarbell disk controller, with a boot EPROM, I think, so no paper tape here. Alhough, I should still have original paper tapes of MITS (Microsoft) 4k and 8k Basic. Terry --- In [email protected], Bob Bruno - K2KI <[EMAIL PROTECTED]> wrote: > > I used to run W0RLI BBS software on a S-100 machine running CP/M. The > tape boot loader would then run the software off of 8" Floppy drives. I > could hear when a floppy was starting to give. It was time to replace > with a backup. > > I thought I was the cats meow when I got a Xerox 820 motherboard. > > 73, cul... > Bob de k2ki > > Leonard wrote: > > --- In [email protected], Bob Bruno - K2KI <k2ki@> wrote: > > > >> Yeah.... How about the old IMSI S-100 bus computers with the bank of > >> > > 16 > > > >> switches on the front that you had to set then hit the load switch. > >> Rinse repeat for all of the instructions in the bootstrap then hit > >> > > Run. > > > > > > After we did that, then it would load the program off of a paper tape > > spool. No thanks, I'll stick with todays technology. > > Leonard > > > > > > ------------------------------------ > > > > Yahoo! Groups Links > > > > > > > > > > > > > > >
