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Alat Pembesar Payudara | Jual Vacum Pembesar Payudara - 0 views

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Steven Hotelling

What Is WiFi? - 0 views

  • You might have WiFi in your house, and it might be your Internet connection, but do you understand how it works? google_ad_channel='20'; google_ad_client='pub-3619764495662405'; google_ad_output='js'; google_ad_type='text'; google_max_num_ads='1'; WiFi Is a Wireless NetworkWiFi stands for wireless fidelity. It is a wireless network that uses radio waves to operate, similar to a radio or a cell phone. The communication that occurs across this wireless network can be broken down into two basic steps:
  • Networking StandardsWiFi radios use 802.11 networking standards, and there are a variety of different standards that fall into this category.
  • WiFi Frequency BandsWiFi radios also transmit on a possibility of three different frequency bands. To reduce interference, WiFi radios can also jump between these three frequencies, and thus several devices can use the same wireless connection at the same time. This is how more than one computer in your household is able to be on the Internet simultaneously.
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  • Regardless of the standard used by your WiFi network, WiFi allows you to connect to the Internet without the need for a physical Ethernet cord or Internet cable.
  • Explain Wireless Access Point
  • WiFi Is a Wireless NetworkWiFi stands for wireless fidelity. It is a wireless network that uses radio waves to operate, similar to a radio or a cell phone. The communication that occurs across this wireless network can be broken down into two basic steps:The computer’s wireless adapter translates data into a radio signal and transmits it through an antenna.The wireless router receives this signal and decodes it, sending the information to the Internet through an Ethernet cord and connection.Alternatively, the process is reversible and information can be sent back across the Ethernet connection to your router, and thus to your personal computer. As it does this, the information is translated back into radio signal.
  • You might have WiFi in your house, and it might be your Internet connection, but do you understand how it works?
Steven Hotelling

[Free online] MOOCs, Large Courses Open to All, Topple Campus Walls - NYTimes.com - 0 views

  • Welcome to the brave new world of Massive Open Online Courses — known as MOOCs — a tool for democratizing higher education.
  • Consider Stanford’s experience: Last fall, 160,000 students in 190 countries enrolled in an Artificial Intelligence course taught by Mr. Thrun and Peter Norvig, a Google colleague. An additional 200 registered for the course on campus, but a few weeks into the semester, attendance at Stanford dwindled to about 30, as those who had the option of seeing their professors in person decided they preferred the online videos, with their simple views of a hand holding a pen, working through the problems.
  • And in what some see as a threat to traditional institutions, several of these courses now come with an informal credential (though that, in most cases, will not be free).
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    "Massive Open Online Courses are free, non-degree programs that have been drawing top professors and are seen as a tool for democratizing higher education." - Tamar Lewin
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