Digital Communication Timeline By Jeremy Raiford, 4th period

1840’s 1870’s 1890’s 1910’s 1830’s 1920’s Mexican War begins Samuel Morse invents Morse code and the telegraph Electromechanical switch invented by Strowger First AM radio broadcast Telephone is invented by Alexander Bell 1840’s 1870’s 1890’s 1910’s 1830’s 1920’s Philo Fansworth has the first TV transmission First telegraph line is set by Samuel Morse Radio transmission is invented by Guglielmo Marconi First New York-San Francisco telephone transmission

1940’s 1950’s 1960’s 1930’s First digital computer using vacuum tubes Digital switch is invented First computer mouse is invented Edwin Armstrong invents the first FM transmission. Solar Cells are invented FORTRAN IV is invented 1940’s 1950’s 1960’s 1930’s First digital computer using relays Transistor is invented Telstar 1 is launched into orbit Floppy disc is invented Transatlantic telephone cable 300 bit/second modem is introduced First use of helicopters during warfare

Prince Charles announces engagement to Lady Dianna Laser printing is developed First computer with color graphics is introduced by Apple Windows is announced IBM PC is introduced Dot matrix printer is developed First portable calculator is invented 1970’s 1960’s 1980’s First supercomputer is introduced CD is invented First CPU 4004 The first Compaq laptop is introduced SEQUEL is created WordPerfect 1.0 is released ARPANET is started

9/11 attacks take place and are reported immediately through multimedia iTunes is released Satellite radio is launched William Clinton’s inauguration is live on the internet Internet Explorer is introduced DVDs replace VHS format Linux is introduced 1990’s 2000’s World Wide Web is invented iPod and MP3 formats are released First news blogs are introduced TiVo is introduced Instant messaging services are introduced Amazon.com launches online shopping