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John Napier
John Napier was a man from Scottland that created Napier 's Bones, which was just a few metal rods. This invention allowed people to multiply and divide big numbers. -
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The History of computers
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Blaise Pascal
Blaise Pascal was from France and created an invention that could add 8 digit numbers. -
Joseph-Maire Jacquard
Joseph-Maire was an inventor that created a machine that copied pictures with a weaving loom and punched cards. -
Charles Babbage
Charles Babbage invented the first difference engine. A difference engine was used to multiply and add and would produce results on tough metal tablets. He is also responsible for making the Analytical Engine which could save and calculate information. -
Herman Hollerith
Herman Hollerith invented a punch card counting system that was used for the United States census. This machine helped make the census process extremly fast. He is also the founder of a company that became IBM. -
William S. Burroughs
William S. Burroughs invented a mechanical caluculator and founded a computer company that later became one of the largest of his era. -
Lee De Forest
Lee De Forest created the vacuum tube or electronic tube. -
Howard H. Aiken
Howard H. Aiken made a programmed controlled calculator which, was the fisrt of it's kind.This machine used punch cards and paper tape. -
The Colossus Computer
The Colossus was created in Great Britain and was used for cracking codes. There were ten in existence, but were all ruined post-World War II. -
The ENIAC
The ENIAC is a device that can calculate 100,000 numbers per second. And it was created at the Ballistic Research Lab. -
The First Transistor
The Transistor was created by three men by the names of John Bardeen, William B. Shockley, and Walter H. Brattain. This invention could do the same operations as a vacuum tube. -
The EDVAC
The EDVAC was the very first electronic device that had strorage with magnetic tape. This invention was created at Princeton University. -
The UNIVAC I
The UNIVAC I is very important because, this was the first computing machine businesses were allowed to own. -
Grace Hopper
Grace Hopper invented a language complier. She is also responsible for the term computer "bug" which was actually a moth in a computer. The COBOL is another one of her discoveries. -
The Integrated Circuit
An integrated circuit is what we call a computer chip. -
Atari
Atari was a personal computer company. These computers were very simple, however, didn't stick around that long due to IBM computers. -
The Microprocessor
A microprocessor is designed to make computers less complicated. -
Intel
Intel created a very intivative microprocessor, the Intel 4004, which made it easier to use computers. -
Xerox
Xerox is a computer company that created the Alto. This was a PC and a computer that could be bought by businesses as well. -
Gary Kildall
Gary Kildall created a system called CP/M, made specifically for the 8080 computer chip. -
The Cray 1
The very first supercomputer for sale was called the Cray 1. It would preform 150 million functions per second. -
Steve Jobs and Steve Wozniak
Steve Jobs and Steve Woniak were he founders of Apple. They're first computer created together was called the Apple I. Their computers were extremly popular yet expensive, just like today. In 1977 they sold their second computer, the Apple II. -
Radio Shack
The TRS-80 PC was invented by Radio Shack in 1977 and was a cheaper computer compared to Apple. -
Commodore
Commodore was a computer company that sold computers that were relatively cheap. Most households in the late 70's owned one of these computers.The most popular is the Commodore C64. -
The Graphical User Interface
The Graphical User Interface or GUI, allows people to physically interact with a computer through icons. -
Bill Gates and Paul Allen
Bill Gates and Paul Allen are the founders of Microsoft. Microsoft is known for Windows, EXCEL and WORD.
