Evolution of the computer

Blaise Pascal

Jan 1, 1640

http://www.biography.com/people/blaise-pascal-9434176
In 1640 the Pascal family moved to Rouen France. After a year from moving there Blaise published an essay on Conic Sectioins. The essay had a leap in projective geometry, and it transferred a 3D object on a 2D field.

Difference Engine

Jan 1, 1822

http://www.computerhope.com/jargon/d/diffengi.htm
The difference engine is a machine invented by Charles Babbage. It was used to calculate numbers and compute numbers, which it would then make a hard copy of each results it would get.

Charles Babbage

Jun 14, 1822

http://www.charlesbabbage.net/
In 1822 Charles Babbage showed to the public the Differance Engine to the Royal Astromical Society. The engine could calculate polynomials by doing a numrical method, which was the differance method.

Ada Lovelace

Jan 1, 1834

http://www.sdsc.edu/ScienceWomen/lovelace.html
Ada was taught really well in mathmatics and music. She became best friends with Charles Babbage and helped him work on his Differance Engine.

Herman Hollerith

Jan 1, 1881

In 1881 Herman Hollerith made a machine that would tabulate censuse data a lot easier and more efficient. Then in 1890 he made he made a punch card tool for the censuse data. He got his idea to make a punch card tool from what train conductors would use to punch tickets.

Census counting machine

Jan 1, 1890

Herman Hollerith built the census counting machine which made it easier for the government to count the census. It could punch holes and was inspired for him to build it because he saw a train conductor worker hole punching tickets.

Alan Turing

Jan 1, 1945

http://www.britannica.com/EBchecked/topic/609739/Alan-M-Turing
Alan Turing was a mathmetician and always found ways to make mathmatical statements easy. Later in 1945 he had a design and made a electronic computer, which was a digital computer. The computer was called Pilot Model ACE.

ENIAC

Feb 14, 1946

http://www.seas.upenn.edu/about-seas/eniac/
The ENIAC was one of the first general purpose computers. It was very advanced for its day, and could do many mathmatical problems.

Mark II

Jan 1, 1947

http://en.wikipedia.org/wiki/Harvard_Mark_II
The Mark II was and electromechanical computer that was built by Harvard and finished in 1947. The computer could do electromagnetic relays.

Grace Hopper

Jan 1, 1949

http://www.cs.yale.edu/homes/tap/Files/hopper-story.html
Grace Hopper was very smart with coding and logical thinking. She helped programe some of the first computers such as the Mark 1, Mark 2, and Mark 3 computer.

Differential Analyzer

Jan 1, 1950

http://www.computerhistory.org/revolution/analog-computers/3/138
The Differential Analyzer was an electroncal machine that could do many things for it's time. It was like the first computer, it could solve math equations, engineers would use it a lot, it was good for physics work, and any work really involving the real world.

Bjarne Stroustrup

Dec 30, 1950

http://en.wikipedia.org/wiki/Bjarne_Stroustrup
Bjarne Stroustrup invented C++. C++ is what almost all computers use today and without it, we wouldn't be as far as we are today with computers. Bjarne went to Aarhus college and got a Phd in computer science.

Fortran

Jan 1, 1954

http://inventors.about.com/od/computersoftware/a/Fortran.htm
Fortran was made by IBM in 1954. It is used for programming mathmatical calculations and scientific calculations. Fortran is known as a high level programming language.

Gaben Newell

Nov 3, 1962

http://en.wikipedia.org/wiki/Gabe_Newell
Gaben runs one of the most popular places for computer gaming and game disign called Steam. He dropped our of Harvard and went to work with Microsoft. Today he has a wife and two kids.

Basic

Jan 1, 1964

http://en.wikipedia.org/wiki/BASIC
Basic is a important programming language that many computers used. Basic was made in 1964 and was used to write custom software on computers.

Rasmus Lerdorf

Nov 22, 1968

https://pbs.twimg.com/profile_images/1844920209/rl_crop-modified.jpg
Rasmus is a computer programmer and is known for making a PHP scripting language for computers. It's not a common language but there are computers that do use it.

C

Nov 19, 1969

http://en.wikipedia.org/wiki/C_(programming_language)
C is a programming language developed by Dennis Ritchie. C is one of the most used computer programs still today and is also known as a structured program.

Linus Trovalds

Dec 28, 1969

http://en.wikipedia.org/wiki/Linus_Torvalds
Linus Trovalds was a software engineer behind one of the great computer programs Linux. Linus has programmed many computers and computer engines.

Bill Gates

Jan 1, 1975

http://en.wikipedia.org/wiki/Bill_Gates
Bill Gates was very interested in computers, so in the 1970's or 1980's he started Microsoft which has been building computers and computer software for a very long time.

Steve Jobs

Apr 1, 1976

http://allaboutstevejobs.com/bio/timeline.php
In 1976 Steve Jobs and two of his other friends first started developing apple computers. Eventually they made the Apple 1, which became popular. Then after that became the Apple 2.

PDA

Jan 1, 1984

http://en.wikipedia.org/wiki/Personal_digital_assistant
The PDA or palmtop computer was one of the first mobile phones. It could connect to the internet and had a full key board for people.

PC

Jan 1, 1990

http://en.wikipedia.org/wiki/Personal_computer
The PC was made as an all purpose computer that could do many things. The PC was made to help people with work, to use at home, and could even run games.

Tablet Computers

Jan 1, 1990

http://en.wikipedia.org/wiki/Tablet_computer
Tablet computers have been around almost since the 1990's and they can run appllications, go on the internet, play games, and just help with everyday life.

Java

Jan 1, 1995

http://en.wikipedia.org/wiki/Java_(programming_language)
Java showed up in 1995 and is a computer programming software thats still in use today. The intention of it was to run anywhere and write once for application developers. Bytecode is what Java particularly runs in.