Taylor said H.E.N.R.Y. is based on the Unicorn design and just wanders around trying to stay out of trouble" by using bumpers to detect obstacles. Controlled by a Sinclair ZX81 with 16K memory, H.E.N.R.Y. also possessed a 128-word spoken vocabulary and voice recognition capabilities.

H.E.N.R.Y. went to the International Personal Robot Congress & Exposition in Albuquerque, New Mexico, April 13-15, 1984 where he won the Golden Droid Award for "Most Entertaining" robot.

See also https://www.theoldrobots.com/HENRY.html

and Build a Microcomputer-Controlled Robot.pdf by Bruce Taylor.

Sync magazine V3 No4 July/August 1983 p18
https://archive.org/details/syncmagazine-v3_n4/page/n15/mode/2up