The first computer I worked with was in 1979. It was an IBM 370. I wrote Fortran code, punched my own cards, and left the deck in a mail slot. The operator ran my job and gave me back the output.
One of the earlier PC's I worked with was an Otrona Attache. It had a five inch monitor, ran CP/M, and had two 5.25 floppy disks.
I still have a complete desktop publishing system from 1989. Everything still works.