3. ABC Computer One of the most diffecult computers built Made By: Joihn Antanasoff & Clifford Berry 1942
4. Harvard Mark 1 computer Made by: Howard Aiken & Grace Hopper the dawn of the computer age 1944 Made by: John eckert & John Mauchly, 20,000 vacuum tubes in one room!
5. 1946 ENIAC 1 COMPUTER Made by: John eckert & John Mauchly, 20,000 vacuum tubes in one room!
6. 1948 the wenchester baby computer and williams tube this perticular tube could store a ton of memory! fredrick williams & tom kilburn
7. 1947/48 john bardeen, Walter Brattin & william Shokley this device is not a computer is was extremely useful in science.
8. inivac computer Made by: John eckert & John Mauchly, the first commercial computer 1951