PDP-1
I've already gathered some resources about it.
It'll run LISP and SpaceWar! (with a CRT device).
This could be more fun (or more preposterous) if it were made a GUI challenge to draw DAS BLINKENLIGHTS!
Can't suggest edits on non-wiki meta posts! who knew?!
Here's some info on the PDP-8. From the digital Small Computer Handbook, 1967.
The PDP-8 is a general-purpose, stored-program computer, featuring a 1.5 microsecond random accesscoore memory, a fast arithmetic processor, and a buffered input-output control. These features combine to make the PDP-8 one of the most popular on-line computers for physics and biomedical analysis and process control. The PDP-8 is also used in large systems as a control element and as a training computer.
The PDP-8 is easy to install, maintain, and use, with comprehensive software, customer-tested in over 500 installations. The basic system includes 4096 words of 12-bit ferrite core memory, keyboard-printer and tape reader-punch, eight auto-index registers, wired-in analog-to-digital converter, program interrupt, data interrupt, and indirect addressing.
A partial list of central processor options includes the Extended Arithemtic Element for high speed, double precision arithmetic, Memory Modules and Control for increasing memory size in increments of 4096 words to 32,768 words; a Data Cannel Multiplexer providing direct memory access for seven external devies; and a Serial Drum for storage of 65.536 to 262,144 words.
The applications success of the PDP-8 has led Digital to develop a series of computers based on the PDP-8 to meet a number of special needs, resulting in a unique gaily of small computer products. These include the DISPLAY 8, the LINC-8, the TYPESETTING-8, the MULTIANALYZER-8, and the new PDP-8/S.
SPECIFICATIONS:
Word length: 12 bits
Memory: 4096 to 32,768 words; cycle time 1.5 microseconds
Add Time: 3.0 microseconds
In-Out Tranfer Rates: 7,992,000 bits per second
Standard I/O Devices: Printer-keyboard with paper tape punch and reader
Instructions: 49 with standard equipment, expandable to over 100 as optional equipment is added.