| A | B |
|---|
| Which tool was considered to be the first calculator? | Abacus |
| Which special feature was used to help weaving machines create patterns on fabric? | Punch cards |
| What was the name of John Napier's calculating machine? | Napier's Rods |
| Who invented the first mechanical adding machine? | Pascal |
| Who is considered the first computer programmer? | Lovelace |
| Who invented the difference engine and the analytic engine, neither of which ever worked? | Babbage |
| Electrical "squiggles" that represent the relationship between the sound made or spoken and the sound received or heard. | Analogous |
| What would be an example of an analog recording of music? | A vinyl record |
| With what did our military begin experimenting when they needed to make their telephone conversations more secure? | Binary telephone signals |
| What was inside the first modern computers that would get very hot? | Vacuum tubes |
| What are the two binary numbers? | 0 and 1 |
| What invention replaced the vacuum tube? | Transistor |
| What invention let us put thousands of transistors in a very small space? | The integerated chip or silicon chip |
| What invention made it possible to store memory on a small computer chip? | Microprocessor |
| The abbreviation for the American Standard Code for Information Interchange | ASCII |
| To send a message in Morse Code signal, what kind of signal would you have to send? | A combination of high and low voltage electrical signals |
| Who is the founder of IBM? | Hollerith |
| A small jolt of high or low voltage inside a computer creates a signal | Binary |
| Who designed the first intergrated circuit or silicon chip? | Kilby |
| Who developed the microprocessor? | Hoff |
| In ASCII, how many 1s and 0s are required to create a character like the letter A? | Eight |
| In ASCII, how many 1s and 0s are required to create a picture? | Hundreds or thousands |
| Throughout history, computers have gotten... | Smaller |
| Because of the transistor, computers emitted less... | Heat |
