| A | B |
|---|
| Tool invented by Chinese to express numbers | Abacus |
| First electromechanical computer | Mark 1 |
| Mauchly/Eckert | Eniac, Univac |
| First all electric computer | Eniac |
| what replaced vacuum tubes | transistors |
| Napier's Bones | John Napier |
| Pascal | Arithmetic Machine |
| Babbage | Analytical Engine |
| Lady Ada Augusta Lovelace | Use the binary system |
| Hollerith | Tabulating Machine for the census |
| had 18000vacuum tubes, weighed 30 tons, was the size of your gym | Eniac |
| how many circuits are on each chip | thousands |
| these replaced integrated ciruits | chips |
