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- Path: sparky!uunet!engcon!fenner
- From: fenner@engcon.marshall.ltv.com (JWFENNER)
- Newsgroups: comp.sys.ibm.pc.misc
- Subject: Re: Q: Are the Baud Rate and BPS same?
- Message-ID: <1001@engcon.marshall.ltv.com>
- Date: 11 Sep 92 14:34:57 GMT
- References: <1992Aug28.155701.218@news2.cis.umn.edu>
- Reply-To: fenner@engcon.UUCP (JWFENNER)
- Distribution: usa
- Organization: LTV MEG, Dallas, TX
- Lines: 20
-
- Baud rate and Bits per second are essentially the same thing.
- For example, if you have a 2400 baud modem, you can transfer
- 2400 bits per second. Bytes per second is another story, however.
- Data sent over the modems is broken down as follows:
-
- +-----------+-----------+-------------+
- | START BIT | DATA BITS | STOP BIT(S) |
- +-----------+-----------+-------------+
-
- where START BIT is 1 bit, DATA BITS is generally 8 bits (without parity),
- and STOP BITS is usually 1 bit. These numbers can vary, but this is the
- most common format used today.
-
- What this means is that for each BYTE of data you send, you actually send
- 10 bits, not just 8. So your effective BYTES PER SECOND would be 240 for
- a 2400 baud modem.
-
- Most of the newer modems also use compression techniques to help improve
- the EFFECTIVE baud rate.
-
-