History of Computers By: Madelyn Skinner

Just Another Name? There are more people, that we have knowledge on, who helped invent the computer. We will discuss the start-up of the computers in this presentation.

Five Key Topics Early Computational Devices Early Computers Generations and Main Components Inventors and Developers Internet

Abacus Old calculating tool Beads indicate numbers

Punched Cards Controlled the operation of the machine Punched cards were input and Babbage used a steam engine for power.

First Microcomputer Had a microprocessor as its CPU Also had input and output

ENIAC First general purpose computer Electronical Numerical Integrator And Computer Financed during World War II

EDSAC; EDVAC; UNIVAC EDSAC – Early British computer – Created by John von Newmann EDVAC – First binary computer UNIVAC – First commercial computer – Developed in the US

Mark I Electromechanical computer Developed by Harvard University in 1944 Referred to as the ASCC

Generations of Computers First Generation – – Vacuum Tubes Second Generation – – Transistors Third Generation – – Integrated Circuits Fourth Generation – 1971-present – Microprocessors – Development of GUI Fifth Generation – Present and beyond – Artificial intelligence – Parallel processing

Father of Computing Charles Babbage Built the first mechanical computer

Blaise Pascal and Jon von Neumann Pascal: – Made mathematical discoveries Neumann – Helped design the EDVAC also called “The von Neumann machine”

Herman Hollerith Developed a mechanical tabulator based on punch cards

Formation of Microsoft Bill Gates – Chairman Paul Allen – Co-founder

Formation of Apple Steven Jobs – Co-founder – Brains for Apple Steven Wozniak – Founder

Birth of the Net 1969 First browser was the Mosaic First type of internet was the ARPANET Department Of Defense helped discover the internet

Inventors of the Internet Tim Berners-Lee – Inventor of W.W.W. (World Wide Web) Marc Andreesen – Co-author of Mosaic

What You Have Learned People who first started computing People who helped develop our knowledge in technology Types of computers The five generations Some older ways of figuring mathematical equations

Citation Page Webopedia Staff. “The Five Generations of Computers” [online] 4, April, /FiveGenerations.asp 2/FiveGenerations.asp Direct Link Company. “Microsoft” [online] 4, April, Glen Stanford. “Company History” [online] 4, April,