Data Communications: History and Standard Organizations
•Transferir como PPTX, PDF•
2 gostaram•3,288 visualizações
This presentation briefly discusses the history of data communications (late 19th century to mid-20th century) and the different standard organizations that governs the world of data comm.
Recomendados
Mais conteúdo relacionado
Mais procurados
Mais procurados (20)
Destaque
Destaque (17)
Semelhante a Data Communications: History and Standard Organizations
Semelhante a Data Communications: History and Standard Organizations (20)
Mais de Jhan-Curt Fernandez
Último
Último (20)
Data Communications: History and Standard Organizations
- 1. Data Communications History and Standard Organizations Jhan-Curt Steven G. Fernandez
- 2. DATA COMMUNICATIONS -is the process of transferring digital information (usually in binary form) between two or more points.
- 3. HISTORY OF DATA COMMUNICATIONS
- 4. 1837 Samuel F.B. Morse invented the telegraph With the telegraph, dots and dashes are transmitted across a wire through electromechanical induction.
- 5. 1837 1840 Originally, the first telegraph was invented by Sir Charles Wheatstone and Sir William Cooke. In 1840, Morse secured an American patent for the telegraph.
- 6. 1837 1840 1844 The first telegraph line was established between Baltimore and Washington, D.C.
- 7. 1837 1840 1844 1849 The first slow-speed telegraph printer was invented in 1849, but it was not until 1860 that high-speed (15 bps) printers were available.
- 8. 1837 1840 1844 1849 1850 The Western Union Telegraph Company was formed in Rochester, New York for the purpose of carrying coded messages from one person to another.
- 9. 1837 1840 1844 1849 1850 1874 Émile Baudot invented a telegraph multiplexer, which allowed signals from up to 6 telegraph machines to be transmitted simultaneously over a single wire.
- 10. 1837 1840 1844 1849 1850 1874 1876 The telephone was invented by Alexander Graham Bell.
- 11. 1837 1840 1844 1849 1850 1874 1876 1899 Guglielmo Marconi succeeded in sending radio telegraph messages.
- 12. 1837 1840 1844 1849 1850 1874 1876 1899 1920 The first commercial radio stations were installed, allowing the transmission of information across large spans of water.
- 13. 1837 1840 1844 1849 1850 1874 1876 1899 1920 1940 Bell Laboratories developed the first special-purpose computer using electromechanical relay.
- 14. 1837 1840 1844 1849 1850 1874 1876 1899 1920 1940 1951 Built by the Remington Rand Corporation, the UNIVAC computer was the first mass-produced electronic computer.
- 15. 1837 1840 1844 1849 1850 1874 1876 1899 1920 1940 1951 1968 Until 1968, the AT&T operating tariff allowed only equipment furnished by AT&T to be connected to AT&T lines.
- 16. 1837 1840 1844 1849 1850 1874 1876 1899 1920 1940 1951 1968 A landmark Supreme Court decision the Carterfone decision (1968), allowed non-Bell companies to interconnect to the vast AT&T communications network. This decision started the interconnect industry, which has led to competitive data communications offerings by a large number of independent companies.
- 18. -creates the sets of rules and standards for graphics, document exchange and related technologies. The ISO is responsible for endorsing and coordinating the work of other standards organization.
- 19. -consists of government authorities and representatives from many countries. It is now the standards organization of the United Nations and develops the recommended sets of rules and standards for telephone and telegraph communications.
- 20. -is the official standards agency for the United States and is the U.S. voting representative for ISO.
- 21. -is a U.S. professional organization of electronics, computer, and communications engineers.
- 22. -is a U.S. organization that establishes and recommends industrial standards. The EIA is responsible for developing the RS (recommended standards) series of standards for data and telecommunications.
- 23. -is the official standards agency for Canada with similar responsibilities to those of ANSI.