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Jan 1, 1200
Abacus
The worlds first computer using sliding beads. -
Blaise Pascal
The worlds first mechanical calculator. -
Joseph Jacquard
The worlds first punch card. -
Charles Xavier Thomas
The worlds first Arithometer, manuafactured in Paris after WW1. -
Charles Babbage
The worlds first Automatic calculator machine that builds tables. -
The ABC
The worlds first electronic digital computer. -
1st Generation Computers
-Used vaccuum tubes
-huge
-produced so much heat that the air conditioning wasn't needed
-unrealiable -
2nd Generation Computers
Early 1960s
-faster and more reliable
-transistors
-needed less power to run
-more memory space
-gave off less heat -
3rd Generation Computers
Late 1960s
-Silicon chips
-faster, smaller, more reliable
-software industry emerged -
4th Generation Computers
-Microprocessors
-Microcomputers
-smaller circuitry
-user-friendly
-computers in homes
