quote:Original post by sark
That would be me. And you didn't look very hard.
You are right, I only did a simple search for "binary number tutor", not logical/bitwise operations. Thank you for giving the link ;-)
quote:Original post by Drakex
i already know how to use binary and hex but what i was wondering is what the hell is octal for anyway? i've never seen anything in octal. my dad says they used to use octal back in the 60s on navigation computers in fighter jets in the vietnam war. is that all it's for? lol
Octal is base eight. There are eight possible values, 0 thru 7, before you increment the next digit. Early digital pioneers used the highest possible binary grouping (which is three bits, allowing decimal 0-7), that did not exceed our ability to think in base ten (0-9). Then someone figured out if you add another bit, using the digits 0-9 plus the letters A-F, you could encode more values in a single representation, hexadecimal .. The term "hex" is actually misleading, that would imply base 6 ;-) This allowed a more compact representation, which also allowed TTYs (teletype systems, not remote consoles) use of the alphabet, numbers, punctuation and control codes in a machine translatable form (actually, they only used 7 bits, the eight was sometimes used instead as a parity bit).
I do have the eplainations (somewhere, in one of my term papers) describing why (or likely reasons why) early civilizations used certain enumerations (counting systems) and glyphs (symbols, or letters in our alphabet). If anyone is interested in such trivia, ask me in email, I'll see if I still have the .ps around.
quote:Original post by Radens
hey, there 10 kind of people in the world, those that knows the binary system and those that don´t.
what do you think? do I know it?
And those that don't know grammar (like me.. ;-)
[edited by - Casteele on February 10, 2003 2:32:05 AM]
