Not Apple, Not Altair, but Queen's University Invented the PC

MCM/70 by Micro Computer Machines

Designed and built in Kingston, Ontario, the MCM/70 was released by Queen's University Professor Mers Kutt in 1973. It had a keyboard and monitor akin to the Apple II, a full 3 years ahead  of the Apple I, 1 year ahead of the Altair, which had just dip switches. A beautiful industrial design featuring cassette tape input akin to the Commodore 64, which came out 8 years later. Too bad it didn't run BASIC but APL.

HML Spinoff Mark One Introduces the World's First Smart Beverage Container Vessyl

HML's TeleHuman featured on hit HBO comedy show 'Silicon Valley'

Note that this clip contains explicit language not suitable for a younger audience.