Issue No.04 - July/August (1983 vol.3)
Larry Korba , National Research Council of Canada
Gordon Park , National Research Council of Canada
David Crabtree , National Research Council of Canada
A special plug-in cartridge for the VIC-20 converts it into a dynamic keyboard emulator that enables a handicapped user to control a second, unmodified computer.
Larry Korba, Gordon Park, David Crabtree, "The MOD Keyboard", IEEE Micro, vol.3, no. 4, pp. 7-17, July/August 1983, doi:10.1109/MM.1983.291132