Punch Cards
Before keyboards, you programmed with holes. Very, very slowly.
Quick Bits
What It Was
Punch cards stored data and instructions as holes in stiff paper, which means early computing was somehow both high-tech and aggressively office-supply-coded. They were the physical way to feed programs into machines before keyboards and screens took over.
Why It Mattered
They were one of the big bridges between mechanical data processing and modern computing. Entire workflows, classrooms, and business systems revolved around preparing, sorting, and not dropping giant decks of them like a cartoon disaster.
Why They Feel So Alien Now
Punch-card workflows were slow, error-prone, and wildly cumbersome compared with interactive computing now.
They still matter because they make something obvious that modern devices hide really well: computing used to be stubbornly, hilariously physical.