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Beads on a rod used for counting.

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Based on Napier's rules for logarithms

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Demonstration of Slide Rule Multiplication

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First stored program- metal cards

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How an 1803 Jacquard Loom Led to Computer Technology

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• Difference Engine

Analytical Engine-Stored numbers on metal punch

cards, accurate to 6 decimal places, powered by steam

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A demo of Charles Babbage's Difference Engine

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The first invention of a computer.

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First Generation College Students Speak On Covid’s Impact | NBC News NOW

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the second invention of a computer.

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The third invention of a computer

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The fourth invention of a computer

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256 bytes of memory
2 MHz intel 8080 chip
Cost $395-$495

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First wide selling personal computer
8088 Microchip 29,000 transistors
256 K RAM
1 or 2 floppy disk drives

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IBM PC (1981) - Video Game Years History

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Released apple 2 computer that was used in most schools.
First commercial computer with Graphic user interface GUI and mouse.

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Apple's new "M1" Mac computers in 11 minutes

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Faster and less expensive
Windows 95 was 1st decent GUI

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Great increase in speed, storage, and memory. 21st century

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Great increase in speed, storage, and memory. 21st century

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Networking and internet capabilities
CD drives
Cell phones and wireless technology.

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How To Increase Speed and Memory of Your Mobile in One Click