-=PCTechTalk=- Re: Wireless
- From: "Roger" <rcleavitt@xxxxxxxxxxxxx>
- To: <pctechtalk@xxxxxxxxxxxxx>
- Date: Sun, 21 Sep 2008 19:23:20 -0700
Actually the argument presses on. It takes 9 bits per byte since a stop bit
is required between bytes.
So, an eight bit stream is actually a nine bit stream, otherwise you would
get an undecipherable mess that nobody could understand.
Imagine transmitting a distress signal without a stop bit.........
is it SOS,OSS,SSO, SSO???
To get a constant signal, decipherable by a radio operator, the stream must
be SOS/SOS/SOS........... so the break is essential!
To get my late wife's young cousin to take up computing rather than roofing
I told him I'd take a class with him in Basic out at the Community College
and I'd drive.
We got to the binary code and I explained a bit, then that four bits
constructs a nibble, two nibbles makes a byte........... and two bytes makes
a hickey!
I nearly got expelled but nobody in the class ever forgot it.
YMMV
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----- Original Message -----
From: "Sandi Beach" <sandib2@xxxxxxxxx>
To: <pctechtalk@xxxxxxxxxxxxx>
Sent: Sunday, September 21, 2008 6:53 PM
Subject: -=PCTechTalk=- Re: Wireless
> Thanks, G, for the explanation. I did not know that.
> Sandi
>
> ----- Original Message -----
> From: "Gman" <gman.pctt@xxxxxxxxx>
> To: <pctechtalk@xxxxxxxxxxxxx>
> Sent: Sunday, September 21, 2008 7:24 PM
> Subject: -=PCTechTalk=- Re: Wireless
>
>
>> Actually, this is a touchy subject because different folks have different
>> abbreviations for these things and I've seen people arguing over it who
>> were
>> on the same side of the issue. lol
>>
>> Officially, KB stands for KiloByte while kb is the abbreviation for
>> kilobit.
>> The HUGE difference is between the meaning of a bit verses a byte.
>> Unfortunately, a lot of folks, including me, are usually lazy and only
>> capitalize the first letter to indicate the difference, and that usually
>> just leads to even more confusion.
>>
>>
>> So, let's talk bits & bytes:
>> A bit is a term representing a single binary state which can be either a
>> 0
>> or a 1. In physical terms, it represents the presence or absence of
>> voltage
>> within a component (usually a transistor) at any given moment. If there
>> is
>> sufficient voltage, it's considered to be a '1'. If there is not enough
>> voltage (or no voltage at all), it's viewed as a '0'.
>>
>> A byte is an 8-bit stream of these bits. In other words, it takes 8 bits
>> to
>> equal a byte. Every alphanumerical character within this email
>> represents
>> a
>> single byte, including the spaces between the words. To represent these
>> characters in binary form, electronic systems designers devised a table
>> that
>> has been adopted worldwide and an example of the alphabet conversions can
>> be
>> seen in the link below.
>>
>> http://www.tekmom.com/buzzwords/binaryalphabet.html
>>
>> So, to fully answer your question, a byte is 8 times the size of a bit.
>> So
>> 1KB = 8kb. If your speed results show that you are getting 1000kb, you
>> may
>> want to do the math to see how it's represented in KB's. 1000kbps/8 =
>> 125KBps.
>>
>> Peace,
>> Gman
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