CADR

The CADR was the first successful LISP machine, built by the MIT AI Lab as a follow-on to the prototype CONS machine.

Physically, the microcoded CPU was a single huge wire-wrap swing-out bay mounted in the front of an H960 rack. A separate backplane held main memory cards, I/O cards, etc.

External links

• Retrocomputing - MIT CADR Lisp Machines - Includes emulator, complete sources, and bootable disk images
• CPU image
• CPU backplane image
• I/O box image