General Chat Thread, Binary have I got it right? in General; I was reading my networking book and it starts of with the maths involved in networking such as binary. I ...
28th July 2008, 07:22 AM #1
Binary have I got it right?
I was reading my networking book and it starts of with the maths involved in networking such as binary. I myself am not a maths genius but I actually think I have got the hand of binary.
Ok, what I know is each 1 and 0 is known as a bit and 8 bits make a byte so 1,000 bits would be a kilobit and 1,000 bytes would be a kilobyte, so would that make 8,000 bits a kilobyte?
I also know that 1= on and 0= off and that 128, 64, 32, 16, 8, 4, 2 and 1 are the lowest eight positions used in the binary numbering system so the binary number 10110 would be 24 in the decimal system?
If all I have said is correct then I will be pretty happy as it means I understand binary Also, I know undestand the joke about there is only 10 types of people in this world.....
28th July 2008, 08:11 AM #2
Is it not....
1000 bits = 1 kilobit
1024 bytes = 1 kilobyte
I'm probably a mile off with that though haha
28th July 2008, 08:35 AM #3
You are correct but my books says 1000.
Originally Posted by Hightower
28th July 2008, 08:39 AM #4
I'm going through a C++ book and it had a section on binary - I'm sure that's what it said.....
Still haven't got a clue about it though haha
28th July 2008, 08:53 AM #5
- Rep Power
kilo actually means 1000 - think kilometre = 1000 metres etc.
Specifically in computing you get the 1024 because of binary - put 1024 and 1000 into binary and you can then see how the bits in a binary counter make using 1024 easier to work with.
In binary 10110 = 1x16 + 0x8 + 1x4 + 1x2 + 0x1 therefore 16+4+2 = 22 not 24!
If you want an easy way to chech binary, use the Windows calculator (in scientific mode) - it will let you enter numbers and translate them between Hex, decimal, octal and binary.
28th July 2008, 09:07 AM #6
28th July 2008, 10:50 AM #7
In IT assume "kilo" = 1024 unless written by a marketer - we are in base 2 after all
Bit that some get wrong is the difference between kilobit (Kb) and kiloblyte (KB) - often not written differently, and you can usually only tell from the kontext - generally, if you see kb in computing it is byte, in comms and bandwidth it is bit (8 times smaller)
28th July 2008, 12:06 PM #8
28th July 2008, 12:11 PM #9
I wish the uptake of the IEC prefixes was more widespread. It'd make life easier when explaining to someone why their 250GB hard disk is actually much less than that.
Originally Posted by somabc
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