Whats you oldest computer

Jerome Fine replies: I seem to remember that was the first Unibus PDP-11 I used in 1975. Does yours system still work? Do you have disk drives or paper tape? Do you use an operating system? RT-11? Would you like a copy of RT-11 that will work with your hardware? It will be a bit difficult with so little memory, but probably possible. But it does require at least a floppy disk drive or an RK05/RL01/RL02 or even a TU-58 if you have an RS-232 serial port (you could toggle in the TU-58 boot program instead of the one for the RK05). That was the one thing about the PDP-11/05 that was really handy - the boot program in core memory could be easily changed and did not disappear when the power was turned off. Of course, I can't ever remember doing that in the 3 years that I used the PDP-11/05 since the RK05 drives were the only ones it ever had. Sincerely yours, Jerome Fine