History of Computers

_________________________  computers used Vacuum Tubes.

• First Generation
• Second Generation
• Third Generation
• Fourth Generation

_________________________  computers used Vacuum Tubes.

• First Generation
• Second Generation
• Third Generation
• Fourth Generation

First fully electronic digital computer built in the U.S.  It was created at the University of Pennsylvania 

• ENIAC/UNIVAC
• Abacus
• Vacuum Tubes
• Slide Rule

UNIVAC contained 18,000 ­­____________________ and cost  $487,000 

• ENIAC
• Abacus
• Vacuum Tubes
• Slide Rule

____________________Computers used Transistors starting in 1956, replacing vacuum tubes

• First Generation
• Second Generation
• Third Generation
• Fourth Generation

_____________________ computers used Integrated Circuits (chips) 

• First Generation
• Second Generation
• Third Generation
• Fourth Generation

_________________  are  sets of instructions loaded each time a computer is started

• UNIVAC
• Operating Systems
• Vacuum Tubes
• Origination Systems

4^th Generation computers had ___________________, and are getting smaller and smaller

• Transistors
• Integrated Circuits
• Microchips
• Vacuum Tubes

First  device that stored programs and used metal cards

• UNIVAC
• Abacus
• Jacquard Loom
• Slide Rule

He invented two different engines, one that used metal cards to store data and was powered by a steam engine.

• Charles Babbage
• John Napier
• Steve Jobs
• Jacquard Moore