>Bob designed other boards for S-100 bus machines, including a PROM board that eliminated the need for hobbyists to manually enter a boot-up program sequence via front panel switches
Does it mean Bob Harp invented the BIOS?
It sounds like he brought the BIOS to S-100 bus machines though.
It was common in those days to compile the BIOS directly into your copy of CP/M, rather than running it from ROM. CP/M had memory areas set aside that you could patch. The ROM was only expected to contain a boot loader that would copy the OS image into memory and jump to it.