Computer History Bravo

This is considered to be the first calculating device. The Chinese developed it in the year 2600 B.C.

• Slide Rule

• Abacus

• Caluculator

• Parqueted Loom

He was a mathematician who developed the "Pascaline." This was the first mechanical adding machine. The Pascaline was a wooden box that could add and subtract by using a series of gears and wheels.

• Charles Babbage

• Herman Hollerith

• Joseph Jacquard

• Blaise Pascal

was principally a mathematician, most famous for helping break the German's Enigma code during World War II at Bletchley Park. He turned to computers to help break codes faster, saving millions of lives in the process and shortening the length of the war.

• Ada Lovelace

• Grace Hopper

• Charles Babbage

• Alan Turing

was credited with popularizing the term "bug" and "debugging" - reportedly when she had to remove a moth from the inside of a computer, was instrumental in the creation of FLOW-MATIC language for the UNIVAC I and UNIVAC II computers and was quoted as saying "It is easier to ask forgiveness than it is to get permission.

• Herman Hollerith

• Ada Lovelace

• Alan Turing

• Grace Hopper

He invented the "Tabulating Machine." The Tabulating Machine used punch cards to store information. It was later used to tabulate the U.S. Census.

• Herman Hollerith

• Charles Babbage

• Grace Hopper

• Alan Turing

was principally a mathematician, most famous for helping break the German's Enigma code during World War II at Bletchley Park. He turned to computers to help break codes faster, saving millions of lives in the process and shortening the length of the war.

• Alan Turing

• Grace Hopper

• Charles Babbage

• Herman Hollerith

was credited with popularizing the term "bug" and "debugging" - reportedly when she had to remove a moth from the inside of a computer, was instrumental in the creation of FLOW-MATIC language for the UNIVAC I and UNIVAC II computers and was quoted as saying "It is easier to ask forgiveness than it is to get permission."

• Grace Hopper

• Ada Lovelace

• Alan Turing

• Charles Babbage

She is considered to be the first computer programmer. She wrote a computer language for the Analytical Engine.

• Charles Babbage

• Alan Turing

• Grace Hopper

• Ada Lovelace

They were electronic devices that controlled the flow of electricity in and out of a computer. They looked like long light bulbs.

• Vacuum Tubes

• Vacuum Cleaner

• Transistors

• Integrated Circuits

were developed by M.E. Hoff. It allowed scientists to put more complex circuits and large memory storage on a very small computer chip.

• Transistors

• Microprocessors

• Vacuum Tubes

• Artificial Intelligence