Minix, if you want to compile text-mode programs as if you were batch processing the month-end invoices on a minicomputer in the year 1983. OpenVMS, if you wan

Minix, if you want to compile text-mode programs as if you were batch processing the month-end invoices on a minicomputer in the year 1983. OpenVMS, if you want to resurrect some actual software that was used to do scientific calculations on a VAX in the year 1983.