[AI] Asymmetric Digital Subscriber Line (ASDL), OpenSocial, and much much more!
Tech Dose of the Day
vishnuhappy at yahoo.com
Tue Jun 17 05:48:49 EDT 2008
Asymmetric Digital Subscriber Line (ASDL)
Dosed by Venkat Viswanathan (from MphasiS Software Services)
What is an ADSL?
Asymmetric Digital Subscriber Line (ADSL) is a form of DSL, a data communications technology that enables faster data transmission over copper telephone lines than a conventional voice band modem can provide. It does this by utilizing frequencies that are not used by a voice telephone call. A splitter - or micro-filter - allows a single telephone connection to be used for both ADSL service and voice calls at the same time. Because phone lines vary in quality and were not originally engineered with DSL in mind, it can generally only be used over short distances, typically less than 3 miles (5.5 km).
In India, MTNL and BSNL provide Internet over ADSL.
How does it work?
The service makes use of your existing telephone line. It splits into two channels, one for voice communications and the other for the high speed data connection. It makes use of frequencies between 25 KHz and around 1.1 MHz which is very much higher than normal voice communications.
Dosed by Baskar P – M & E Team (from MphasiS Software Services)
What is OpenSocial?
OpenSocial is a set of three common APIs, defined by Google with input from partners, that allow developers to access core functions and information at social networks:
• Profile Information (user data)
• Friends Information (social graph)
• Activities (things that happen, News Feed type stuff)
These APIs are created with maximum flexibility.
What is its usefulness?
Developers only have to learn the APIs once in order to build applications that work with any OpenSocial-enabled website. Any website can implement OpenSocial, developers have a broad distribution network to reach users. Websites also benefit by engaging a much larger pool of third party developers than they could without a standard set of APIs.
Share files, take polls, and make new friends - all under one roof. Go to http://in.promos.yahoo.com/groups/
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