Introducing the one (and as far as I know, the only) COSMAC Elf microcomputer simulator! (Tah-dah!)
Download version 1.0 of the simulator, which now includes the CDP 1861 "Pixie Graphics" chip for high-resolution (okay, okay, 128x64) graphics. COSMAC.ZIP There's only one file in the ZIP. Just unzip it into a directory of your choice and run it. Comprehensive instructions, as well as links to more ELF and 1802 facts and trivia are included in the built-in help menu. Compatible with Windows 3.1, 95, and NT, as well as WABI (Sun), WINE (X-windows), SoftWindows (Mac), and other Windows emulators. (And if you don't find it ironic to run a simulation of a 15-year-old microprocessor under an emulator of an 8-year-old operating system. written for a 17-year-old CPU, running on a state-of-the-art personal computer, then your sense of irony is obviously in need of a tune-up! ;-)
I'm also proud to present the on-line, HTML-ized version of the original Popular
Electronics construction article (complete with schematics, program listings, and
photographs), translated from the original paper version by Kenneth W. Melvin. I
have checked the schematics to the best of my ability, but neither Kenneth nor I nor
anyone else is to be held responsible for any errors or omissions which cause frustration,
financial loss, bodily harm, etc., etc.
Build The
COSMAC "ELF" - A Low-Cost Experimenter's Microcomputer BY JOSEPH WEISBECKER
3rd Party Elf Software:
"Meistermind" by Klaus Ernst - A classic guessing game for the Elf
meister.cos - Program file; load using the simulator's "File, Open" option
meister.txt - Instructions for playing the game
meister.lst - Assembler source code listing
Simulators by Claus Giloi:
I have to give credit to Claus' Altair and IMSAI simulators for inspiring me to write the Elf simulator. Every so often when I need a quick hit of nostalgia, I fire up the Elf, the IMSAI, and the Altair all at the same time and just sit and watch the lights blink.
Click below to download the simulators
A Brief Introduction to Programming the IMSAI 8080
Altair
8800b Simulator 
IMSAI
8080 Simulator