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L15 The Mobile Revolution
The document discusses the evolution and impact of mobile communication, beginning with the telegraph and telephone and progressing to the rise of mobile phones. It highlights key technological advancements, including the development of cellular networks and the significance of the iPhone in 2007, which transformed the smartphone market. The document underscores that mobile phones have outnumbered traditional devices and are now essential for safety and connectivity globally.
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L15 The Mobile Revolution
- 1. LECTURE L15 THE MOBILEREVOLUTION
- 3. 757M daily circulationsof all newspapers 969M total TV subscribers 1.3B registered cars 1.1B of all types of computers (PC, netbooks...) 1.2B total landline phones 1.5B total TV sets 1.7B total unique holders of credit cards 2.1B total unique holders of bank accounts 3.9B total FM radios in use
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- 6. Basically everybody hasa mobile phone Source and image: The Independent
- 7. There are moremobile phones in the world than there are toothbrushes Mobile Phones
- 8. Will grow to5.7 billion phones by 2020 Image: Nokia Mobile Phones
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- 11. In 2011, therewere 48 million people in the world who have a mobile phone but do not have electricity at home Mobile Phones provide safety Cisco, January 2011
- 12. The History ofCommunication
- 13. Communication Wars have beenwon on intelligence and the speed of communications Militaries and business community on the forefront on the development of rapid communication
- 14. Communication Early 19th centurythe horse dominated Stage coaches and pony express The railroads changed this Then came electricity
- 15. From 1820 to1880 discoveries in radio and electromagnetism Timeline
- 16. An Industrial Revolution Theperiod 1870-1914 Innovations in the chemical, electric, petroleum and steel industries Adjacent Possible Growth period
- 17. Electromagnetism and Radio Foundationfor electronic communications New markets for communication Telegraph Telephone Wireless Telegraph Communication
- 18. From the Greekwords tele = far and graphein = write (símriti) Later to be called the “Victorian Internet” The Telegraph
- 19. The Telegraph Simple devicewith battery and key for sending electric signals At the other end was a similar device emitting sound or printing the signal
- 20. Samuel F. B.Morse invented the first practical telegraph in 1837 Granted a patent 1838 Moore devised a telegraphic code consisting of dots and dashes Shorter and longer electric impulse send down the wire - The Morse Code Standardized messages The Telegraph
- 21. Invented in 1876 Atthe time, the telegraph was dominant Transferred sound waves with electric current over wire Alexander G. Bell Created the first practical telephone Based on experiments and improvements in technology at the time The Telegraph
- 22. At the dawnof the 20th century, two mediums for communication were dominant The telegraph: Became important in the American Civil War (1861-65), dominated by Western Union The telephone: Dominant technology with the growth of Bell Both these technologies had one problem: they were wire-based History
- 23. Guglielmo Marconi sawan opportunity in wireless communication Studied physics at the University of Bologna Several experiments in 1894 in Bologna, Italy Marconi’s goal was to use his knowledge developed in telephony Wireless Telegraph
- 24. Marconi was improvingthe telegraph “Spark Transmitter” where signals could represent the Morse code Potential market: Maritime market – British Royal Navy Transatlantic communication Wireless Telegraph
- 25. Many scientists werehappy to point out flaws in Marconi’s inventions Doubts that wireless had any application Limitations – radios worded on fixed frequency Security – anyone could listen in The telegraph was initially 20 times faster Cable companies showed no interest in wireless Skepticism and Competition
- 26. Wireless Telegraph waspopular in the press Many companies competed for stock funding Resulted in Stock inflations - “The Wireless Telegraph bubble” Sceptic voices started to respond Series of articles in Success Magazine, “Fools and their money” appeared 1907 The Wireless Telegraph Bubble
- 27. No regulations controlledthe airwaves The sinking of RMS Titanic prompted governments to set international standards of communication The Marconi operator on the Titanic sent “C.Q.D” C.Q. meant attention, D was for Distress SOS is ... - - - ... Government Regulation
- 30. Around 1940 ideasfor wireless communication were established It was not until the development of microchips and technology for building devices, that wireless communication became practical for individuals Rules and cautiousness were to delay the progress Also investments in land based systems Wireless Communication
- 31. Wireless Communication Wireless communicationstarted early 20th century Wireless radio was important in WWII Many innovations such as spread spectrum and frequency hopping
- 32. Hedwig Eva MariaKiesler 1913-2000 "Films have a certain place in a certain time period. Technology is forever” - Hedy Lamarr
- 33. Wireless Communication After thewar, use of wireless was restricted to certain profession (police, military, taxis) Not public solutions The ideas for mobile radio networks were developed in the 1940s Area of radio cells – Cellular network
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- 35. The Digital Revolution Theenabling technologies - adjacent possible
- 36. The First Cellphone (1973) Name: Motorola Dyna-Tac Size: 9 x 5 x 1.75 inches Weight: 2.5 pounds Display: None Number of Circuit Boards: 30 Talk time: 35 minutes Recharge Time: 10 hours Features: Talk, listen, dial Early Systems
- 37. Technical Improvements Microchip Digital SignalProcessor Mobile phones became practical in the 1980s
- 38. Cellular Networks Radio networkmade up of radio cells Tower and base Mobile Telephone Switching Office MTSO
- 39. ▪ Mobile phonesprovide safety ▪ The most common device of all ▪ Mobile phones are not practical until 1980s due to size of technology – Adjacent Possible ▪ The invention of the microchip played crucial role in the development of cell phones Lessons Learned: Cellular Phones
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- 42. 1G Analog 1980s Voice only NMT,AMPS, FDMA
- 43. 1G Analog Early systemswere in Bahrain, US, Japan and in the Nordic countries First international system was NMT in the Nordic Frequency Division Multiple Access - FDMA
- 44. 1G Analog NMT inNordics AMPS in the US TACS in UK C-Nets in West Germany Radiocom 2000 in France RTMI/RTMS in Italy
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- 47. Multiple standards –roaming is a problem In the US this is not a problem 1G Analog
- 48. European countries decideto define common standard – digital Work on a Global System for Mobile Communication (GSM) starts 1982 1G Analog
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- 50. 1990s Voice and data 9.6– 14.4 Kbps GSM, TDMA Downloading 3 min. MP3 song: 31-41 min. 2G Digital
- 51. Digital mobile phonesappear in early 90s GMS takes off in 1991 – unites Europe Time Division Multiple Access – TDMA 2G Digital
- 52. 2G Digital US wasslow in adopting 2G because roaming worked well Digital did not add enough over analog Texting and SIM cards was not known
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- 54. GMS Global System forMobile Communication Built on TDMA – Digital Three times the capacity of analog, encryption, texting, SIM cards
- 55. Texting Short Message Systemallowed 160 letters Became an accidental killer app – messages, chat, ring tones First message sent 03.12.1992: “Merry Christmas”
- 56. ▪ Cars becamethe first platform for phones ▪ First phones are analog ▪ Multiple standard – each country invents its own – Problem with standards (history repeats itself?) ▪ Roaming problems in Europe call for a standard ▪ Digital standard developed in Europe, G2 ▪ US does not have roaming problems and gets stuck in G1 Lessons Learned: Cellular Phones
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- 58. Mobile networks andthe Internet start to converge 1G and 2G are circuit switched – fine for voice The Internet is packet-switched 3G Packet Switching
- 59. 2000s More data 128+ Kbps GPSR,EDGE, UMTS, CDMA Mobile networks and the Internet start to converge Downloading 3 min. MP3 song: 11 sec. – 1,5 min. 3G Packet Switching
- 60. More bandwidth, moreapplications Email, Images, music, movies, streaming Based on Code Division Multiple Access – CDMA 3G Packet Switching
- 66. 3G Solutions Messages BrowsingApps (J2ME)
- 67. Built with limitations Screensize, bandwidth restrictions Input limited – one-handed keyboard Limited memory, battery life Fragmentation nightmare Mobile web was limited, bad version of the web 3G Solutions
- 68. Then, in 2007,the world changed
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- 71. How does the competition respond? The Arrogance of the Present
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- 73. iPhone hit themarket in June 2007
- 75. Ok, let’s checkthe facts five years later
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- 83. 180 billion appsdownloaded (2017)
- 84. App market revenue$88 billion in 2016
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- 87. Source: Mary MeekerSlide Deck Smartphone Market
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- 99. Key Trends Mobile becameimportant in 2010 and will be a revenue opportunity going forward
- 100. Source: Heavy Reading Anyconsumer business that ignores the smartphone, will likely become irrelevant
- 101. The end ofthe Unconnected Source: http://ben-evans.com/
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