The Harvard Mark I was an early computer built during WW2. The engineers behind it were heavily inspired by Charles Babbage’s Analytical Engine. It weighed 5 tons.

Here's how long different operations took:
• 0.3s
• 6s
• 15s
• Trigonometric function >60s pic.twitter.com/GSsKGJGJ0L

— Fermat's Library (@fermatslibrary) January 11, 2022