If you happen to be [NICKMANN] though, you can lay claim to the honor of doing so on a machine with no such hardware, because he managed it on an unmodified Sinclair ZX81. For those of you ...

Budget machines such as Sinclair’s ZX81 could give a taste of what was possible, but their technical limitations would soon become obvious to the experimenter. 1982 was going to change all that ...

Elie Habib remembers getting a Sinclair ZX81 home computer when he was 11 years old, and that was when he realized he could make a machine “think” based on the code that he wrote.