Computer Science / Unit 1 CS 0005 short lesson, about 20 seconds
Computing Before Electronics
Captions available
The idea
Computing devices predate electricity by thousands of years — people tallied on the abacus in antiquity, and mechanical engines automated calculation with gears in the 1800s.
In practice
Babbage's Difference Engine ground out polynomial tables mechanically, built to prevent human arithmetic errors.
Where people slip
The ideas came first; the electronics came later.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Builds on
Unlocks
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