Alexander Graham Bell

Alexander Graham Bell was born on March 3, 1847 in Edinburgh, Scotland. Bell went to Royal High School in Edinburgh, and graduated at the age of 13. He became a student teacher of elocution and music at the age of 16. He instructed at Somersetshire College from 1866 to 1867. When he was 23 he and his family moved to Brantford Canada, where he began his studies in telephony. On March 6, 1876 Bell received the patent for the telephone. While he was in the Volta Laboratory he and hi colleagues experiment ed with the idea to use a magnetic field as a way of storing sound. They could not get it to work however that was the basic principle used in the cassette and computer and then the CD. In 1888 he became a founder of the National Geographic society and he became its second president. In 1914 he received an award for his telephone. Bell died on August 2, 1922 in Baddeck, Canada.

Grace Hopper

Grace Hopper was born on December 9, 1906. She was an early form of a computer wizard. She progammed the Mark 1 calculator and she also was the first compiler of a computer programming language. In 1928 she graduated from Vassar university with a bachelors degree in Physics and Mathematics. She then pursued Yale. She got her masters in the same two subject in 1930 and 1934. She became the first women ever to have a Ph.D in Mathematics. In 43' she joined the naval reserve to begin work on the Mark 1 calculator. Even after the war when she was discharged she kept on working on the Mark II and Mark III calculators. She also designed the computer language compiler that allowed it to be written extremely close to the English language instead of ones, and zeros. She also implemented a computer standards institution, which eventually became what is now NIST. To every meeting she wore her full naval uniform. Hopper is also remembered for being the first to discover a computer bug. Grace Hopper died on January 1, 1992. She now lies at rest in section 59 of Arlington cemetery.

Thomas Edison

Thomas Alva Edison was born in Milan, Ohio into a middle class family. Oddly enough Tom didn't begin to talk until he was four years of age. As soon as he acquired his speech he began asking anyone and everyone how things worked. By age eleven Tom began to use the local library. At twelve Tom's parents hired a tutor because they could not understand what Tom was talking about in his numerous fields of knowledge.
Tom's first invention was the automatic repeater. It would receive and send messages between unmanned telegraph stations. Another of his early inventions was the electric vote recorder. When he tried to sell it to the legislature they rejected the idea. Tom realized that his idea was ahead of its time and way to advanced for the minds of the legislature.
In 1877 Edison invented the phonograph, even though Alexander Graham Bell had been working on the idea for years. In 83' he invented electric light, heat and power. Around 1900 he invented the first movie camera. At age 83 he began to slow down and created his 1093 patent.
Thomas Edison died at the age of 84. He died in New Jersey on October 8th 1931.