BY: TAMAIRA GLOVER &

KRISTY LEE !

OUR TIMELINE .

1802

Richard Trevithick granted a patent for the steam locomotive

Commercial electric motor invented by Thomas Davenport

1843

Typewriter invented by Charles Thurber

Phonographic Correspondence Society formed in England

1856

Book & newspaper folding machine patented by Cyrus Chambers, Jr.

Property of magneto-resistance was discovered by William Thomson

1868

The electric voice machine was patented by Thomas Edison

Trachoma color photo process patented by Louis Duos du Huron

1877

Microphone invented by Emile Berliner

Process for hard drawn copper wire developed by Thomas Doolittle

1877 First tape recorded voice by Thomas Edison

Phonograph invented by Thomas Edison

Household use of electricity made available by Thomas Edison

1884

Linotype machine invented by Ottmar Mergenthaler

1884 Data processing machine and punch

cards invented by Herman Hollerith

1895

Radio signals invented by Guglielmo Marconi

Cinematograph developed by Augusta and Louis Lumpier

1923

Sound film invented by Lee DeForest

Television invented by Philo Farnsworth

1956

Optical fibers invented by B. Hirschowitz, C. W. Peters, and L. Curtiss

Videocassette recorder invented by Charles Paulson Ginsburg with Ampex

1958

First integrated circuit produced in the U.S. by Jack Kirby and Robert Nonce

Computers built with transistors mark beginning of second generation computers

1959

More than 200 programming languages are created by this date

International Business Machines (IBM ) creates desk-sized computers for businesses and scientists

1984

IBM produces the PC AT with an Intel 80286 microprocessor

Hewlett Packard produces first Laser Jet printers for PCs

Apple manufactures the MacIntosh computer with a graphical user interface