History of Computers. The Abacus. The First “Automatic” Computer Chinese Invented first attempt at automating the counting process. The abacus is a machine which allows the user to remember his current state of calculations while performing more complex mathematical operation. .
Gottfried Leibniz Wilhelm
Pascal’s Gear System
It worked like an odometer for counting kilometers.
Pascaline made for French currency.
The binary system which is the foundation of virtually all modern computer architectures.
Used internally by modern computers.
Made up of 0s and 1s.
Used for card readers, electric circuits, and vacuum tubes.
*Babbage is credited with inventing the first mechanical computer, called the Difference Engine, that eventually led to more complex designs.
Part of Babbage\'s difference engine, assembled after his death by Babbage\'s son, using parts found in his laboratory.
In Babbage’s time, numerical tables were calculated by humans . At Cambridge, he saw the high error-rate of human calculations and started his life’s work of trying to calculate the tables mechanically.
The London Science Museum’s Difference Engine #2, built from Babbage’s design.
1939 - 1954
A device used to create an electrical signal by controlling the movement of electrons in a low-pressure space.
Critical to the development of electronic technology.
Were bigger, not as efficient or reliable, didn’t last as long, more expensive than a transistor.
The first general-purpose electronic computer. It was a digital computer capable of being reprogrammed to solve a full range of computing problems.
ENIAC was designed to calculate artillery firing tables for the U.S. Army’s Ballistic Research Lab, but its first use was in calculations for the hydrogen bomb.
1951 – First Commercial Computer
*Is commonly used to switch electronic signals.
*The fundamental building block of modern electronic devices, and is used in radio, telephone, computers and other electronic systems.
*Cited as being one of the greatest achievements in the 20th century, and some consider it one of the most important technological breakthroughs in human history.
Can be packaged individually but most are found in integrated circuits.
1959 - 1971
aka IC, microcircuit, microchip, silicon chip, or chip
Integrated circuits are used in almost all electronic equipment in use today and have revolutionized the world of electronics.
First integrated circuit – Jack Kilby – Texas Instruments
The ARPANET (Advanced Research Projects Agency Network) created by ARPA of the United States Department of Defense during the Cold War, was the world\'s first operational packet switching network, and the predecessor of the global Internet.
incorporates most or all of the functions of a central processing unit (CPU) on a single integrated circuit.
reduced the cost of processing capacity.
Bill Gates and Paul Allen approached Ed Roberts of MITS, creators of the new microcomputer, and promised to deliver the BASIC (Beginner\'s All-purpose Symbolic Instruction Code) interpreter.
They did so and from the sale Microsoft was born.
He is ranked consistently one of the world’s wealthiest and the wealthiest overall as of 2009. Net worth: 58 billion as of 2008.
Gates is one of the best-known entrepreneurs of the
personal computer revolution.
His 66,000 sq. ft. estate has a 60-foot swimming pool with an underwater music system, as well as a 2500 sq. ft. gym and a 1000 sq. ft. dining room.
As of Oct. 1, 2008, he has donated 35.1 billion to the Bill & Melinda Gates Foundation, which focuses on Education, Health Care, & Poverty.
Gates and his wife are very fond of F. Scott Fitzgerald’s The Great Gatsby, and inscribed in the library a sentence from the last page of the novel: "He had come a long way to this blue lawn, and his dream must have seemed so close that he could hardly fail to grasp it."
Seattle Weekly reports the 2008 tax of $1.06 million and the home\'s assessed value of $147.5 million
According to Forbes Allen is the 32nd richest person in the world, worth about $10.5 billion.
Allen also has a multi-billion dollar investment portfolio.
Allen owns three professional sports teams: the Seattle Seahawks, the Portland Trail Blazers, and the Seattle Sounders FC – Major League Soccer, that began playing in the 2009 season.
Allen was diagnosed with Hodgkin\'s disease in 1983. His cancer was successfully treated, however, he did not return to Microsoft and began distancing himself from the company.
April 1, 1976
(International Business Machines Person computer)
January 30, 2007
*Graphical User Interfaces (GUI)
-Allows you to use a mouse
to control the computer
-Can run thousands of
different sets of instructions
-Bring an ordinary
tabletop to life.
Cell Phones of the Future.avi
Coffee Table Computers
Microsoft Surface – The Possibilities
Review: Name: __________1. Why should we study the past, present, & future of computers?2. Who invented the 1st mechanical computer?3. What is the name of the 1st Automatic Computer?4. Who invented the Binary System?5. What is the name of the 1st commercial computer?6. Who invented the 1st mechanical calculator?7. What computer was used in making calculations for the hydrogen bomb?8. ARPANET was a predecessor of what?9. What is the difference between the World Wide Web and the Internet?10. 1st Generation of computers used what?11. 2nd Generation of computers used what?12. 3rd Generation of computers used what?14. 4th Generation of computers used what?15. What evolved during the 5th Generation of computers?16. What was your favorite part of the “History of the Computer” Unit?