Re: AW: [Fis] Re: What is information ?Re: AW: [Fis] Re: What is information ?
From: Aleks Jakulin <jakulin@acm.org>
Date: Sat 22 Oct 2005 - 14:22:56 CEST
kj04@chello.at wrote:
In computer communications the notion of a "protocol" describes how two
1. keepalive: makes sure that a long-term connection is regularly
The Keep-Alive extension to HTTP, as defined by the HTTP/1.1 draft,
2. ping: checks how long it takes to obtain a response from the other
Ping uses a series of Internet Control Message Protocol (ICMP) echo
3. checksum: Assures that the message was transmitted correctly. "OK?"
A checksum is a form of redundancy check, a very simple measure for
4. handshake: Initializes the communication between two computers. "Hello!"
While it is possible for a pair of end hosts to initiate connection
5. timeout: Breaks down a communication channel if there has been no
A timer at the sending TCP will cause a timeout if an acknowledgement is
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If there is a functioning link, we can use them to transmit the really
With the minimalism of engineering, these elements of protocols would
Still, we can see how there is almost nothing in computing that doesn't
-- dr. Aleks Jakulin http://kt.ijs.si/aleks/ Department of Knowledge Technologies, Jozef Stefan Institute, Ljubljana, Slovenia. _______________________________________________ fis mailing list fis@listas.unizar.es http://webmail.unizar.es/mailman/listinfo/fisReceived on Sat Oct 22 14:22:40 2005
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