Note: The Northstar Horizon and Cromemco Machines are down at the moment.  I am using this machine during the bring up phase of the IMSAI Series Two development effort.  I will return the Cromemco back to service as soon as possible.  

Thank you for your patience.

If you have any documentation for this system that you would be willing to copy or sell, please let me know.

The Cromemco System One is a "late-model" S-100 machine.  This particular one has a Cromemco DPU processor card with a Z80 processor and a Motorola 68000 processor.  It also has a 64FDC floppy controller card, 256K of RAM and a 4-port serial card. This machine is running CP/M 2.2, but can also run CDOS (Cromemco DOS) and Cromix.

Please note: Connect to this machine by via telnet by clicking the image below.  After you connect to the machine, press Return a few times slowly to get the machine to boot from the floppy drive.  If it doesn't work after pressing Return a bunch of times, then reconnect and try again.