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- Path: maverick.tad.eds.com!news-admin@tad.eds.com
- From: lnsg1.miberl01@eds.com (Michael S. Berlant)
- Newsgroups: comp.dcom.modems
- Subject: Re: Please Explain Octets
- Date: 18 Mar 1996 03:25:41 GMT
- Organization: EDS Singapore
- Message-ID: <4iil3l$jgn@maverick.tad.eds.com>
- References: <4ii0aa$n8f@news-e2b.gnn.com>
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- In article <4ii0aa$n8f@news-e2b.gnn.com>, PTHarn@gnn.com says...
-
- >Could someone explain the term octets? When I check the details of a
- >communications session the data refers to blocks and octets.
-
- An octet is a string of 8 bits. You may be tempted to call this a byte, but
- don't. A byte is the amount of bits that a processor handles at one time,
- which is typically also 8 bits. Telexes use characters that are 5 bits big,
- IATA uses characters that are 6 bits big, PCs use characters that are 8 bits
- big, but transfer characters that are 7 bits big.
-
- Most modern communications switches transfer information by the octet. That
- is, 8 bits at a time. If you are using a packet switch to transfer telex
- messages, then every 8 characters will occupy 5 octets. If you are
- transferring a binary file from one PC to another, then every 8 characters will
- occupy 8 octets.
-
- Blocks are just groups of octets.
-
-
-