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1834: Charles Babbage announces the parsing engine. ...
1943: Birth of the Mark I Colossus. ...
1954: First prototype of desktop calculators. ...
1969: The creation of the ARPANET. ...
1971: The first e-mail is sent. ...
1981: IBM launches the “PC”...
1990: Tim Berners-Lee writes the first web page. -
Invention of Electricity.
It is not known who invented electricity since there was more than one person -
The Z1 was created by the German Konrad Zuse. Between 1936 and 1938 years. -
· Made by vacun tubes
· Very bige
· Expensive
· Required huge amount of electricity
The first generation was from the year 1945 to the year 1955
Electronic
Numerical
Integrator
And
Calculator -
The invention of transistors, fruit of the efforts of Bell Laboratories in the United States. These devices are electrical switches made of solid materials and without the need for a vacuum.
They were invented by physicists Walter Brattain, William Shockley and John Bardeen. -
· Made by transistors.
· Smaller, cheaper, faster
The second generation was from the year 1956 to the year 1964 -
· Made by integrated circuits
·Fever mistakes
· Smaller, cheaper, fast, less electricity
The third generation was from the year 1965 to the year 1975 -
· Microprocessors, small chip
·smaller,portable,cheaper
·Less electricity, less heat
The fourth generation was from 1975 to present -
·Scientist are trying to develope
·Think on their awn
· Artificial (robotics) -
· Ada Lovelace was a British mathematician, computer scientist and writer, considered to be the first programmer in history.
· Hedy Lamarr invented and patented the first version of spread spectrum that would allow long-distance wireless communications, and is therefore considered the forerunner of Wi-Fi and Bluetooth.
· Jude Milhon was a famous hacker and defender of personal rights on the internet
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