My first "real" computer? Are we counting only computers we've owned personally, or should we include computers we've used that belonged to others (e.g., employers)? The first computer I ever owned was a laboratory-surplus ADDS MultiVision prototype: an Intel 8085-based machine that ran a CP/M-80-compatible O/S that I designed. It had 64 KiloBytes of RAM, two 5.25-inch floppy disk drives, interfaced to an external RS-232 terminal, and was patched together with clip wires and faith. I managed to snarf a 30 MegaByte Seagate Winchester disk drive prototype for it, but as the thing required more electrical power than my home could supply it -- it weighed 60 pounds and had 14 inch platters -- I never got it to work properly. The first computer I ever worked on was an IBM 1800 "minicomputer" that took up a room the size of a small cafeteria. It had 6.2 KiloWords of 16-bit-wide core memory, 256 KiloBytes of disk storage, and a single 9-track tape drive. It was originally intended for the control of laboratory equipment, but was never used for that purpose...possibly because it would crash at a harsh look and took approximately 20 minutes to bootstrap. Feeling a little younger now?
(This message is programming you in ways you cannot detect. Be afraid.)