The
history of telecommunication - the
transmission of
signals over a distance for
communication - began thousands of years ago with the use of
smoke signals and
drums in
Africa,
America and parts of
Asia. In the 1790s the first fixed
semaphore systems emerged in
Europe however it was not until the 1830s that
electrical telecommunication systems started to appear.
Morse code Morse code was invented by Samuel F. B. Morse, who originally built telegraph lines in 1837. The telegraph is considered to be of the most revolutionary inventions in regards to telecommunication history with its use in World War 2. Morse Code has a symbiotic relationship with the telegraph because the invention of the code allowed for the creation of messages, and the telegraph was able to transmit the message. Morse code is operated by using telegraph keys as the transmitter device, while the operator sends out the dots as signals combined sequentially with the dashes as longer signals. On the receiving end, the receiving device would make a clicking noise that the operator would transcribe.
Pre-electric • 26–37 CE – Roman Emperor
Tiberius rules the empire from the island of
Capri by signaling messages with metal mirrors to reflect the sun. • 1520 – Ships on
Ferdinand Magellan's voyage signal to each other by firing cannon and raising flags. • 1792 –
Claude Chappe invents the
semaphore telegraph.
Telegraph • 1792 –
Claude Chappe establishes the first long-distance
semaphore telegraph line. • 1831 –
Joseph Henry proposes and builds an electric
telegraph. • 1836 –
Samuel Morse develops the
Morse code. • 1843 –
Samuel Morse builds the first long-distance electric telegraph line. • 1899 –
The Marconi Wireless Telegraph Company of America was incorporated in New Jersey, and
Spencer Trask & Co., an American investment service, underwrote the
IPO. This was a subsidiary of the British Wireless Telegraph and Signal Company.
Landline telephone • 1876 –
Alexander Graham Bell and
Thomas A. Watson exhibit an electric
telephone along with making the first official call in
Boston • 1889 –
Almon Brown Strowger patents the direct dial
Phonograph • 1877 –
Thomas Edison patents the
phonograph. • 1977 – William K. Heine invents the
laser turntable. • 1997 –
ELP offers the first commercial
laser turntable for sale, the LT-1XA.
Radio and television • 1895 –
Guglielmo Marconi, an inventor and electrical engineer, used radio waves to transmit signals over a large distance. • 1920 – Radio station
KDKA based in Pittsburgh began the first broadcast. • 1924 –
Bell Laboratories invents the first two-way, voice-based radio telephone. • 1925 –
John Logie Baird transmits the first
television signal. • 1942 –
Hedy Lamarr and
George Antheil invent
frequency-hopping spread spectrum communication technique. • 1947 – The first full-scale television commercial is broadcast. • 1963 – The first geosynchronous
communications satellite is launched, 17.5 years after
Arthur C. Clarke's article. • 1999 –
Sirius Satellite Radio is introduced.
Fax • 1843 – Patent issued for the "Electric Printing Telegraph," a very early forerunner of the fax machine • 1926 – Commercial availability of the
radioax • 1964 – First modern fax machine commercially available (Long Distance Xerography) • 1996 – First internet fax machine.
Mobile telephone • 1947 –
Douglas H. Ring and W. Rae Young of
Bell Labs propose a cell-based approach which led to "
cellular phones." • 1957 –
Leonid Kupriyanovich invents the LK-1
mobile radio telephone, the first to use
code-division multiple access. • 1965 – Chandros Rypinski, Jr. patents the first multiple-channel radio telephone system, which was licensed to Bell Labs (patent no. US3173996A). • 1973 –
Martin Cooper, then an employee of
Motorola, made the first mobile phone call. • 1981 – Comvik introduces the world's first automatic mobile phone service followed a week later by
Nordic Mobile Telephone. • 1981 –
Millicom Inc., a telecommunications agency, and E.F. Johnson & Co. introduced the first portable cellular phone commercially available for use on a cellular network. It was called the “Lunch Box.” • 1983 –
Motorola launches the
DynaTAC 8000X or the “Brick,” the first commercially available handheld mobile phone weighing 3 pounds (1.4 kg). • 1986 –
Technophone, under the guidance of the company’s then-
chief executive officer, Nils Martensson, released the first pocket-sized mobile phone, the Excell PCT105. • 1996 –
Motorola StarTAC mobile phone introduced. It was significantly smaller than previous cellphones. • 2019 – The first 5G networks were launched in South Korea
Computers and Internet • 1946 – The
University of Pennsylvania introduces
ENIAC, the first programmable, electronic, general-purpose digital computer • 1949 –
Claude Shannon, the "father of
information theory", mathematically proves the
Nyquist–Shannon sampling theorem. • 1957 –
Gordon Gould invents the
laser and the
optical amplifier. • 1965 – First
email sent (at
MIT). in
Tampere,
Finland • 1966 –
Charles K. Kao realizes that silica-based
optical waveguides offer a practical way to transmit light via
total internal reflection. • 1969 – The first hosts of
ARPANET,
Internet's ancestor, are connected. • 1971 –
Erna Schneider Hoover invents a computerized switching system for telephone traffic. • 1971 –
8-inch floppy disk removable storage medium for computers is introduced. • 1975 – First
list servers are introduced. • 1976 – The personal computer (PC) market is born. • 1977 –
Donald Knuth begins work on
TeX. • 1980 –
Usenet is established. • 1981 –
Hayes Smartmodem introduced. • 1985 –
AOL is launched. • 1988 –
Internet Relay Chat (IRC) is released. • 1989 –
Tim Berners-Lee and
Robert Cailliau build the prototype system which became the
World Wide Web at
CERN. • 1989 –
WordPerfect 5.1 word processing software released. • 1990 –
Archie, the world’s first search engine, was released. • 1990 –
Adobe Photoshop is released. • 1991 – Anders Olsson transmits solitary waves through an optical fiber with a data rate of 32 billion bits per second. • 1992 –
Internet2 organization is created. • 1992 – IBM
ThinkPad 700C laptop computer created. It was lightweight compared to its predecessors. • 1993 –
Mosaic graphical web browser is launched. It was one of the first browsers to display images in line with text and not in a separate window. • 1994 – Internet radio broadcasting is born. • 1995 –
Yahoo, an American web services provider, is launched. • 1996 – The first Dense Wave Division Multiplexing (WDM) system was installed
Ciena Corp under the guidance of co-founder
David Huber. WDM subsequently became the common basis of all telecommunications networks and a foundation of the Internet. • 1997 –
SixDegrees.com is launched, the first of several early
social networking services. • 1998 –
Google, an advanced search engine, is launched. • 1999 –
Napster peer-to-peer file sharing is launched. • 1999 –
XMPP is released. • 2001 –
Cyworld adds social networking features and becomes the first of several mass-market social networking service • 2003 –
Skype video calling software is launched. • 2004 –
Facebook is launched, becoming the largest social networking site in 2009. • 2004 –
Gmail is launched. • 2005 –
YouTube, the video-sharing site, is launched. • 2005 –
Reddit is launched. • 2006 –
Twitter is launched. • 2007 –
iPhone is launched. • 2009 –
WhatsApp is launched. • 2010 –
Instagram is launched. • 2011 –
Snapchat is launched. • 2013 –
Telegram is launched. • 2014 –
Signal is launched. • 2015 –
Discord is launched. • 2017 –
Teams is launched. ==See also==