Thursday, April 30, 2015

IoT @ Build 2015, Koomey's law, Metcalfe's law

Internet of Things Overview | Build 2015 | Channel 9
"an overview of the Microsoft IoT portfolio... Windows IoT “Athens" on mobile and industry devices. ...Windows services that allow you to codelessly gather data from these devices to assess health, to manage state and to keep these them up to date... Azure IoT Suite...
  1. Device Connectivity and Management
  2. Analytics & Operationalized Insights
  3. Presentation & Business Connectivity
Learning to create the Internet of Your Things at Build 2015 | Internet of Things


Azure IoT Suite 

Koomey's law - Wikipedia, the free encyclopedia
"Koomey’s law describes a long-term trend in the history of computing hardware. The number of computations per joule of energy dissipated has been doubling approximately every 1.57 years. This trend has been remarkably stable since the 1950s (R2 of over 98%) and has actually been somewhat faster than Moore’s law. Jonathan Koomey articulated the trend as follows: "at a fixed computing load, the amount of battery you need will fall by a factor of two every year and a half."

Computations per KWh, from 1946 to 2009

Metcalfe's law - Wikipedia, the free encyclopedia
"Metcalfe's law states that the value of a telecommunications network is proportional to the square of the number of connected users of the system (n2). First formulated in this form by George Gilder in 1993,[1] and attributed to Robert Metcalfe in regard to Ethernet, Metcalfe's law was originally presented, circa 1980, not in terms of users, but rather of "compatible communicating devices" (for example, fax machines, telephones, etc.)"

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