The first hard disk I used was on the PDP-8, 32k 12-bit words. I have a souvenir ST-506, the first 5 inch hard disk, 5 megabytes, cost $1,500 in 1980. The first floppy drives I bought were off-brands at $400 each. I carried a $10,000 4K memory board to a customer in 1972, on the New York subway, fearing that I'd get mugged. IP cameras are pretty cheap in comparison. Looney, I was on the development team for the TI-990 family, which includes your TI-99 box. Its architecture was IMO far superior to Intel's, but TI didn't know how to market computers, Intel did, and the IBM PC was born with Intel silicon.