My first computer ('82) used an 8085 8 bit cpu, 1 KB Ram and I converted an assembler from a paperback book. It saved to cassette tapes. My first business PC ran MS-Dos 2.11 and 3Com NOS from a single sided, 160 KB 5.25" floppy in 320 KB RAM. The workstations on the network had 128 KB RAM...