Acknowledgements

The majority of the text within the expanded MSC-4 manual is © Intel <intel.com>_ 1971, 1973

Additional text is © 4004.com

Datasheets provided by chipdb.org

bitsavers.org provided: MCS-4 Assembly Language Manual MCS-4 Users Manual Intellec-4 manual

Chip images © cpu-zone.com

Second Source information provided by wikichip.org