Kb கும் KB கும் உள்ள வித்தியாசம்

by Guest Thu Dec 16, 2010 12:59 pm

Kb கும் KB கும் உள்ள வித்தியாசம்

தரவிறக்கும் போது

பதிவு ; தமிழ்/ஆங்கிலம்

KB=kilobytes
Kb=Kilobits

KB is how download speeds are measured
Kb is how connection speeds are measured

1 byte=8 bits

So a 768Kb connection can download at a maximum speed of 96KB/sec

1 KB/s = 1024 bytes

1 Kb or (1kb is the correct SI unit) = 1000 bits

1 byte = 8 bits

Therefore bit for bit, 1 KB = 8192 bits (or 8.192 kb )

We usually talk about bits with regard to transfers over a serial medium e.g. a telephone cable, etc.
And so one has to keep in mind the medium and protocol used for these transfers.

For the TCP/IP protocol which is what is mainly used for the internet, there is a an overhead of about 50 extra bytes for every 512 transferred.

So a transfer of, say, 512 KB is actually a real transfer of (512 + 50)KB = 562 KB

In bits, this is actually (562 * 1024 * 8) bits = 4603904 bits = 4604 kB

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