Recent content by oldmicros

Seem to remember a TTY PAUSE setting In OS/8. Could this be it?

Another holiday break and more progress on the IM6100 single board. It really is great fun playing with PDP-8 code. It now supports RK05 (RK8E) and Dectape (TC08) images as well as the RX01. I’ve also added EAE functionality. The maindecs for these are passing. I would also like to add RL8A...

The Holiday break has given me some quality time to spend on a single board computer using the IM6100 (actually Harris 6100.) Got the PCBs earlier this month and was finally able to get one assembled. Control Panel is nothing but switches and LEDs but for me was the most difficult part. I...

I built this years ago. It could run with a 4004 or 4040.

I've acquired an 8L and have begun evaluating its condition. Looks fairly complete. Is missing one plastic switch lever but otherwise front panel looks pretty good. Did an inventory of the modules and luckily the core memory is present and intact. However it is missing the following modules -...

I've read with interest the recent 4051 discussions here and have noticed that a tape emulator has been mentioned. I too have recently repaired a 4051 and since the tape drive is not functional, I am looking for alternatives. I thought it would be nice to just throw a bunch of images on an SD...