Informative Speech

Evolution of Computers

Why was the computer invented?

• Solve Problems 
• Make complex Math calculations possible
• Make tasks easier for humans

First Generation (1939-1954) Vacuum tubes

• Vacuum tubes for circuitry and magnetic drums for memory
• Were often enormous, slow, and expensive
• Generated a lot of heat, which was often the cause of malfunctions
• UNIVAC and ENIAC computers are examples
• Calculate the feasibility of a design for the hydrogen bomb

Second Generation (1956-1963) Transistors

• Computers became smaller, faster, cheaper, more energy-efficient
• Were developed for the atomic energy industry
• Output was displayed on printouts
•  Input was based on punched cards 

Third Generation (1964-1971) Integrated Circuits

• Transistors were miniaturized and placed on silicon chips
• Drastically increased the speed and efficiency of computers
• Interaction with computers through keyboards and monitors
• Interfaced with an operating system
• Became accessible to a mass audience

Fourth Generation (1971-Present) Microprocessors

• Thousands of integrated circuits built onto a single silicon chip
• In 1981 IBM introduced its first computer for the home user
• In 1984 Apple introduced the Macintosh
• Development of the mouse

Fifth Generation (Present and Beyond)

• Artificial Intelligence
• voice recognition
• Capable of learning and self-organization

Evolution is Constant