From paper to code: What was programming like before the computer?💻

Decades ago, when there was no: High-level programming languages, screens, not even a keyboard Programmers used to write programs using something called Punch Card🟨 ☝️What are Punch Cards🤔? They are cardboard cards, Each card represents one line of code. The holes in the card represent: 0 and 1 That is, machine language that the computer understands 📦 Simple program = hundreds of cards 📦 Big program = full box of cards ✌️ What was the programming process like? 1 The programmer writes the algorithm on paper 2 Each line is converted to a punch card 3 Arrange the cards in the correct order 4 Placed in the computer 5 Run the program 6 Waiting...hours or days to know the result 😅 ❗ No “Run” ❗ No “Debug” ❗ Not even a clear error message 👌 Where was the mistake? One card out of place ❌ Plus or minus hole ❌ Card lost ❌ 👈 The whole program fails This is why the programming was: Very slow Very accurate And very expensive ✌️✌️ Why do we remember this day? Because all the tools we use now: Programming languages, compilers Git and GitHub IDEs It exists for one reason only: Keeping humans away from 0 and 1...and leaving the suffering to the machine #idea_programmer #idea2dev