TECHNOLOGY: Sears Quiz-A-Tron is a coding trick

https://hackaday.com/2016/06/29/puzzling-out-an-80s-puzzle-toy/

PUZZLING OUT AN 80S PUZZLE TOY
by: Gerrit Coetzee
June 29, 2016  

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… looks back a time in the 80s when kids would learn by answering the questions to quizzes on their “TOMY Teacher,” or, “Sears Quiz-A-Tron”. There’s a bit of a conundrum with this toy. How did it know which answers were correct. Chip memory of any kind wasn’t the kind of thing you’d sweep into the dust bin if you had extras like it is now; it was expensive.

To use the toy, the child would place the notebook in the plastic frame on the device. They’d open the page with the quiz they would like to take. Printed in the upper left hand corner were three colored squares. There was a matching set of colored buttons on the device. They’d press the corresponding buttons in order from top to bottom and then the machine would magically know which answers on the quiz were correct.

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If it looks too good to be true, then there is a hidden trick somewhere.

I found this entertaining!

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