| A | B |
|---|
| Integrated Circuit (IC) | A silicon wafer with intricate circuits etched into its surface and then coated with a metallic oxide that fills in the etched circuit patterns. Also called a chip. |
| Transistor | An electronic device that replaced the vacuum tube making computers smaller and less expensive and increasing calculating speeds |
| Charles Babbage | Designed the Difference Machine |
| Ada Byron | Considered the first programmer. |
| Second Generation Computers | Computers that are characterized by the use of magnetic tape and reel-to-reel tape. |
| Vacuum Tubes | Used in first-generation computers. |
| Microprocessors | Enabled the development of microcomputers. |
| Fourth Generation Computers | Used microprocessors. |
| Analytical Machine | Mechanical device built in 1833 |
| First Generation Computers | Developed to support WWII. |
| Pascaline | Mechanical device built in 1642 that only performed addition. |
| Stepped Reckoner | Mechanical device that performed addition |
| Apple Computer | Developed by Steve Jobs and Steve Wozniak in 1976. |
