Your SlideShare is downloading. ×
A brief history of telecommunication
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×
Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Text the download link to your phone
Standard text messaging rates apply

A brief history of telecommunication

626

Published on

Video to be uploaded soon on Youtube. …

Video to be uploaded soon on Youtube.
This talk was given on May 17, 2013, as part of a micro teaching session during a TA training workshop at NUS. It was organised by the Centre for Development of Teaching and Learning.
Slides available for download : http://kknundy.thinkbiosolution.com/slides/20130617_communications.pdf

0 Comments
1 Like
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total Views
626
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
0
Comments
0
Likes
1
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  • 1. Koushik Kumar NundyNUS Graduate School for Integrative Sciences and Engineering
  • 2.  Man is a social animal We need each other to survive To help each other, we need to understand each other We love to brag We like to be reminded that we’re not aloneKoushik Kumar Nundy kknundy@ieee.org
  • 3. Digital communication shouldn’t just be a degraded version oftalking with someone in person. When we can share, emote andcollaborate seamlessly no matter where we are or what devicewe’re on, brilliant things will happen.JOSH CONSTINETechCrunchKoushik Kumar Nundy kknundy@ieee.org
  • 4.  Cave DrawingsKoushik Kumar Nundy kknundy@ieee.orgEl Castillo (oldest recorded ~ 40,000 to 100,000 years ago)
  • 5.  Smoke/Fire Signals Mentioned by Homer in Iliad (1200 B.C.) Great Wall ( 7th Century B.C.)Koushik Kumar Nundy kknundy@ieee.org
  • 6.  Smoke/Fire Signals Mentioned by Homer in Iliad (1200 B.C.) Great Wall ( 7th Century B.C.)Koushik Kumar Nundy kknundy@ieee.org
  • 7.  Smoke/Fire Signals Mentioned by Homer in Iliad (1200 B.C.) Great Wall ( 7th Century B.C.)Koushik Kumar Nundy kknundy@ieee.org
  • 8.  Smoke/Fire SignalsKoushik Kumar Nundy kknundy@ieee.orgWHEN IS THIS ?
  • 9.  Smoke/Fire SignalsKoushik Kumar Nundy kknundy@ieee.orgWHEN IS THIS ?2013 Papal Conclave,Vatican City
  • 10.  Pigeon Post Stands the test of time IP over Pigeon protocolKoushik Kumar Nundy kknundy@ieee.org
  • 11.  Pigeon Post Started over 2000 years ago Used in the ancient Olympics Wide use in the World WarsKoushik Kumar Nundy kknundy@ieee.org
  • 12. ASYNCHROUS COMMUNICATIONDivided in time Divided in spaceKoushik Kumar Nundy kknundy@ieee.orgTELECOMMUNICATION
  • 13. THE BIG STEPSKoushik Kumar Nundy kknundy@ieee.org
  • 14.  Semaphores – before 1791 Electric Telegraph – 1844 - Morse FAX - 1843 - Alexander Bain. Multiplex telegraph – 1870 – Thomas Edison Voice telephony - 1876 - A. G. Bell 1935 - First telephone call around the world. Wireless Telegraph – 1890s – G. Marconi/J. C. Bose Modern Optical Fibre – 1960s – Charles Kao ARPANET - 1969 Wireless Phones – 1973 WWW – 1991 - Tim Berners-LeeKoushik Kumar Nundy kknundy@ieee.org
  • 15. Can anyone think of any other major telecommunication techniquedeveloped in the past 200 years?Koushik Kumar Nundy kknundy@ieee.org
  • 16. “We found that the voice is very weak and indistinct, ...… Technically, we do not see that this device will be ever capable of sendingrecognizable speech over a distance of several miles.”Telegraph operator CEO about the telephone and Bell’s effortsKoushik Kumar Nundy kknundy@ieee.org
  • 17. “We found that the voice is very weak and indistinct, ...… Technically, we do not see that this device will be ever capable of sendingrecognizable speech over a distance of several miles.”Telegraph operator CEO about the telephone and Bell’s efforts“If you really look at it, I was trying to sell a dream ...There was very little Icould put in concrete to tell these people it was really real.”Charles Kao about the fibre-optic cableKoushik Kumar Nundy kknundy@ieee.org
  • 18.  In this topic we will come across the terms digital and analog communication anumber of times. People without a background in telecommunications are stronglyadvised to read the following introduction primers for a basic understanding. Digital Communication :http://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-450-principles-of-digital-communications-i-fall-2006/lecture-notes/book_1.pdf Analog Communication :Primer included in website(link no longer active)Koushik Kumar Nundy kknundy@ieee.org
  • 19. “I know nothing except the fact of my ignorance.”~SocratesKoushik Kumar Nundy kknundy@ieee.org
  • 20. Koushik Kumar Nundy kknundy@ieee.org

×