Billings Computer S-100 System
Billings Computer S-100 System
Roger Billings is and was back then an "odd ball". He however was an opportunist. When he saw the potential in the systems being produced by Ed Roberts, he realized that he could not only make money on those little boxes but he could also save money by using them with his other ventures.
I still have one of his early systems. Its specs were:
Primary cabinet - 8080 2Hhz Intel CPU, 48K memory (3 cards), SIO (4 serial 1 parallel) card and one FDC. The S-100 system contained a motherboard with 20 slots and a front panel that only had 2 switches but lots and lots of lights.
The second cabinet contained 2 cal comp floppy disk drives (8" 240K each single sided IBM raw format).
The terminals were Beehive 80 x 24 Uppercase only and the standard printer was a Centronics 60cps uppercase only bi-directional 14" tractor feed.
All his software was written in Microsoft FORTRAN (GL, AP, Payroll etc.) with the OS being the Digital Research CPM Version 1.2.
Cost - $17,000.
I still have most of the documentation for the OS and many of the distribution disks with his software.
My final configuration kept the original cabinets, but relpaced most all of the rest of the system. The CPU - Tarbell Dual processor (8 MHz 80186/Z80), Marrow Systems HDC, 20 Meg Hard Drive, 2 ea Qume DT8 8" Floppy Disks and 2 Qume 5.25 disks. Memory was upped to 512 using Digital Research (out of Texas) 64K Static Memory cards.
The last time I tried it (about 10 years ago now), everything but the HDC worked.
Tom