History of Computer

Abacus

100

1000BCE- 500 BCE
Made in China and Egytians

Blaise Pascal

Period: Jun 19, 1623 to Aug 19, 1662

He was a mathematician
Made a calculator that can add and subtract.
France

Pascaline Machine

Feb 8, 1642

Calculator that can add and subtract.
Invented by Blaise Pascal

Gottfried Leibniz

Period: Jul 1, 1649 to Nov 14, 1716

Mathematician and a philosopher.
Germany

Charles Babbage

Period: Dec 26, 1791 to Oct 18, 1871

Grandfather of computing- orginated modern computers
Mathematician, engineer, and a philosopher
Was curious
London, England

Ada Lovelace

Period: Dec 10, 1815 to Nov 27, 1852

Mathematician
Knew Charles Babbage's work
London, England

Difference Engine

Jan 1, 1833

Invented by Charles Babbage that can input, process, output and storage.

Herman Hollerith

Period: Feb 29, 1860 to Nov 17, 1929

USA
Engineer and a scientist
Invented first modern computer

Tommy Flowers

Period: Feb 22, 1905 to Feb 28, 1998

England
Engineer
Built Colossus in WWII

Alan M. Turing

Period: Jun 23, 1912 to Jun 7, 1954

England
Gay
Mathematician, logician, computer scientist and a codebreaker
Helped in war

Headphones

Jan 14, 1919

My own choosing

Printers

Jan 1, 1938

My own choosing

Vacuum Tubes

Jan 1, 1940

Had no electricity
4000 vacuums at once

Colossus

Feb 5, 1944

Made by Alan Turning and used in WWII.

Cell Phones

Jun 17, 1946

My own choosing

Transistors

Jan 1, 1950

1950's

Steve Wozniak

Period: Aug 11, 1950 to Feb 12, 2013

Was the founder of Apple
Enginner and a programmer
USA

Tim Burners Lee

Period: Jun 8, 1955 to Feb 12, 2013

Invented WWW
Physicialst, profeessor and a computer scientist
England

Bill Gates

Period: Oct 28, 1955 to Feb 12, 2013

Billionaire, nerd
Started microsoft
Was in jail
USA

Integrated Circuits

Jan 1, 1960

Had 16 legs

Laptop

Jan 1, 1979

My own choosing

Smart Phones

Jan 1, 2007

My own choosing

Microprocessors

Feb 14, 2013

Used until nowdays