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The first batch of 200 has gone out!

A project log for Replica of the PDP-1: PiDP-1

Blinkenlights and vectordot graphics from 1959

oscarvOscarv 09/29/2025 at 01:350 Comments

Well, almost. We're shipping 5-6 PiDP-1s per day at the moment, working our way through the waitlist of daring early adopters. Thank you, all of you! We really, really appreciate the confidence.

Now, we're waiting for parts to make the next 300. Over on the PiDP-1 Google Group, the fun has started. So far: a new disassembler, a new cross-assembler, a Forth and a Lisp (in Forth amazingly) have been written, plus a toolbox to inspect and convert paper tape images.

We've gotten Lisp to work, and the standard development suite of Expensive Typewriter (oops, Symbolic Tape Editor in DEC's own words), MACRO and DDT. 

And work is underway to hook up modern I2C peripherals.

We're having fun! You do not need to have the PiDP-1 hardware to join in, the virtual front panel version works just fine on a Pi, Linux laptop or even Windows WSL2: PiDP-1 Github repository. Please come and join the fun. Plenty of software archaeology left to do (who will bring up FORTRAN?)

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