Computer Science / Unit 1 CS 0013 short lesson, about 20 seconds
"Old Computers Couldn't Compute It"
Captions available
The idea
Speed separates old general-purpose computers from new ones; computability does not — a problem computable today was computable on the earliest machines, given absurd amounts of time.
In practice
A phone and a room-sized vacuum-tube computer reach the same answers at wildly different speeds.
Where people slip
"Faster" never became "able to compute new kinds of things."
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Builds on
Unlocks
- Nothing yet depends on this.
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