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NEEDED AND DO-ABLE: A WIRELESS DATA HISTORY
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drive wireless data networks even today From primitive communication to personal messaging, from Allied torpedoes to the invention of wideband digital CDMA, wireless has always served a purpose Each technology was created in the context of a society eager for a better way to impart information, maintain privacy, and communicate anywhere on the fly
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How Needs Drive Technologies and Vice Versa
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Think of a system of needs and technologies as spiraling, gyre-like, and interactive By 1971, the Bell System in the US had submitted a cellular radio scheme based on frequency re-use to FCC, but six more years would pass before FCC allowed AT&T to start a trial Without the technological capability, for example, the need to communicate at a distance is defeated You cannot communicate (save for telepathy) with a mobile worker or a customer hopping planes and trains all day unless you find a way of securing a channel, using a network, and reaching that person who carries a mobile communications device Conversely, without sufficient need, technology is senseless and superfluous (even if it s ingenious) The patent museums are littered with great gadgets that never caught on because a real need wasn t satisfied; the devices were shelved, abandoned, or eventually, transformed and tweaked to meet a different cultural or business need In this balancing act, applications (eg, the outgrowth of needs) and technologies act on each other in a bi-directional flow In other words, inventors create devices and applications that respond to the needs of society; and then technologies refocus and transform societies, enabling users to discover" new needs
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"Needs" and "Technology": Pigeons to Ponies to PDAs
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As an example of how needs" push technology," the Pony Express solved the problem of communicating faster by organizing the existing technology into a cohesive delivery system leveraged on the true grit of riders and their horses Obviously a marked improvement over other techniques, the Pony Express sparked the application of what else could I do if I could communicate faster " This completed one cycle by having technology" push applications Further spins of need"
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NEEDED AND DO-ABLE: A WIRELESS DATA HISTORY
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and technology" created a national train network that created a mechanized improvement over the John Henry-esque Pony Express and when people demanded even faster delivery, Samuel F B Morse delivered the telegraph It is important to note that technologies solve a certain class of problem, typically presented as the needs frontier" of the day They have inherent value in their time, meaning that waiting for the ultimate technology is a fool s gambit Today we would not try to solve the problem of how to deliver a message in less than several months, yet in the day of the Pony Express, this was a fundamental achievement In the light of today s technology, the telegraph is tucked into the back of a communications museum as will be today s technology probably only 10 or 20 years from now This doesn t mean that today s technology is unable to solve today s problems and that as a society, that we should wait for a future technology to solve today s problems Quite the converse, today s technology is well suited to solve a wide range of commercial applications and should be applied as such Virtually every successful communications method has responded to the unique needs of the era for which it was created Think about the first telegraphs, the Marconi radio, the landline telephone, the first pagers, the first wireless cell phones, and PDAs In each case, needs and available technologies and tools dictated a solution Encoding was an early example The concept of using signals to represent words and messages goes back thousands of years A network to carry the signals started with smoke, light, and chains of human voices It progressed to electricity, wires, and then air (the medium of propagation for radio waves) Communications devices moved from cumbersome wooden poles (see the water telegraph on this page and the next) and mirrors ultimately to metal keys punching out Morse code, large cumbersome handsets, and finally bulky radios with vacuum tubes and then transistorized radios that fit into the palm of one s hand In the last decade, microprocessors and digital switching systems enabled new forms of wireless encoding, compressing information into individual, secure channels
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