King George Inter College, Chinhat, Lucknow - Evolution of Computers The bipolar transistor was invented in 1947. From 1955 onwards transistors replaced vacuum tubes in computer designs, giving rise to the "second
![The Original CablePorn: ENIAC computer and its coinventor, John W. Mauchly, 1947 [2172x2204] : r/cableporn The Original CablePorn: ENIAC computer and its coinventor, John W. Mauchly, 1947 [2172x2204] : r/cableporn](http://i.imgur.com/fsDLj.jpg)
The Original CablePorn: ENIAC computer and its coinventor, John W. Mauchly, 1947 [2172x2204] : r/cableporn
![Lost Computer Tales on X: "Kathleen Booth in 1947 revolutionised low-level computer programming by developing the first assembly language #retrocomputing #rchpic https://t.co/tnjm83Hjln" / X Lost Computer Tales on X: "Kathleen Booth in 1947 revolutionised low-level computer programming by developing the first assembly language #retrocomputing #rchpic https://t.co/tnjm83Hjln" / X](https://pbs.twimg.com/media/DMOzGnvX0AgrgWS.jpg)
Lost Computer Tales on X: "Kathleen Booth in 1947 revolutionised low-level computer programming by developing the first assembly language #retrocomputing #rchpic https://t.co/tnjm83Hjln" / X
![Sept. 15, 1947: Association For Computing Machinery Gets Whirring | Careers | Communications of the ACM Sept. 15, 1947: Association For Computing Machinery Gets Whirring | Careers | Communications of the ACM](https://cacm.acm.org/system/assets/0000/1529/092509_ComputerHistory_Mark_I.large.jpg?1476779411&1253889027)
Sept. 15, 1947: Association For Computing Machinery Gets Whirring | Careers | Communications of the ACM
![ENIAC First Programmable Computer Mainframe Geek Nerd Patent - Etsy | Computer geek gifts, Computer geek, Old computers ENIAC First Programmable Computer Mainframe Geek Nerd Patent - Etsy | Computer geek gifts, Computer geek, Old computers](https://i.pinimg.com/736x/db/f2/4e/dbf24ee5068e1d132b1f647396bb063a.jpg)