Sunday, May 13, 2012

  • How did the internet originate?
    The interenet was first created in 1968 in America.
    In 1957 a remote connection had to be developed so the people could work on the computers despite the fact that they had to be stored in a cold room. At the same the idea of 'time-sharing' came up allowing multiple users to work on one computer. They created a system where knowledge could be transfered faster. Universities were cautious about letting others use their computers so they had a smaller computer, commonly termed the 'Interface' which took over control of network activities. The IMP's connected to other interfaces called the Network Control Protocol. This was later replaced by the more efficent TCP 'Transmission Control Protocol". The NPL Network was expected to support many users and file transfer. The idea that files should be split up came in to play to avoid 'congestion'. This was called packet switching. Upon discovery of a possible atomic bomb attack they created a "de-centralised' network so that if a station was hit the network wouldn't be destroyed. The creation of the french CYCLADES was another milestone. They (with their low budget) had to focus on connecting with other networks.
    TCPIP Transmission control protocol internet protocol.
    Who were the people most responsible for creating it?
    The Internet was originally created by DARPA (the Defence Advanced Research Projects Agency) as a means of sharing information on defence reseacrh between involved universities and defence research facilities.The internet was not created by a single person, however here are some people who made large contributions:
    ARPANET (Advanced Research Projects Agency Network).
  • The idea-Leonard Kleinrock's
    People such as- Elmer Shapiro, Steve Carr, Steve Crocker, Jeff Rulifson, Ron Stoughton, Paul Baran, Thomas Marill, Lawrence Roberts, Barry Wessler, Bolt Beranek and Newman, Inc. (BBN)


    What system immediately preceded the internet? What was its purpose?

    Lee had actually begun networking computers before the development of the PC, with his Community Memory project in the late 1970s. This system had terminals (like computer screens with keyboards connected to one large computer that did the processing). These were placed in laundromats, the Whole Earth Access store, and community centres in San Francisco. This network used permanent links over a small geographical area rather than telephone lines and modems.

    What is an IP packet? What is it comprised of?
    IP packet is the basic data chunk that can be sent over the Internet. All the data is partitioned into IP packets on the sending computer and reassembled on the receiving computer. Each packet contains header information that includes the type of traffic it is (FTP or UDP, for example) and where it originated from.

    What does TCP stand for? How does TCP deal with lost IP packets?
    Transmission Control Protocol over Internet Protocol. These are two transmission protocols that work together to help the servers, clients and devices on the network talk to one another.
    Why do computer people like everything in letters?
    They may prefer it because acronyms are easier to remember, as well as shorter to type and refer to.
 
 

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