Web 2.0 provides unlimited possibilities to web applications. It revolutionaized the way information is being delivered. Anyone can now easily obtain and broadcast information effectively on the web.
When I first heard of Web2.0, I was in ITP404 intermediate web development class of USC. By that time, my understanding of this concept was limited to some new technologies related to it, such as AJAX and SOAP, based on which we actually did projects. It was more like another programming class to me. But this article givesd me a more rounded understanding of Web2.0. it talks about the impact of blog searching and tag-based interest communities, which really stretch my thoughts beyond plain web scripting.
Tuesday, February 20, 2007
Friday, February 2, 2007
the ARPANET (From Wikipedia)
The Advanced Research Projects Agency Network (ARPANET) developed by ARPA of the United States Department of Defense was the world's first operational packet switching network, and the progenitor of the global Internet.
Packet switching, now the dominant basis for both data and voice communication worldwide, was a new and important concept in data communications. Previously, data communications was based on the idea of circuit switching, as in the old typical telephone circuit, where a dedicated circuit is tied up for the duration of the call and communication is only possible with the single party on the other end of the circuit.
With packet switching, a system could use one communication link to communicate with more than one machine by assembling data into packets. Not only could the link be shared (much as a single mail person can be used to post letters to different destinations), but each packet could be routed independently of other packets. This was a major advance.
click here for more info
Packet switching, now the dominant basis for both data and voice communication worldwide, was a new and important concept in data communications. Previously, data communications was based on the idea of circuit switching, as in the old typical telephone circuit, where a dedicated circuit is tied up for the duration of the call and communication is only possible with the single party on the other end of the circuit.
With packet switching, a system could use one communication link to communicate with more than one machine by assembling data into packets. Not only could the link be shared (much as a single mail person can be used to post letters to different destinations), but each packet could be routed independently of other packets. This was a major advance.
click here for more info
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