Where do you learn the Binary, Hex, Octal?

Can anyone share where you figure these out?

I’m taking a test and never run into these:
[B]0xFF = 255
010 = 2?

hexadecimal
binary
octal
[/B]
I thought hexadecimal was like 8 or 16 characters,
and binary 8, and octal 7.

But I am being asked questions that appear to be shorthand versions, is there any formula to solving these?

Saying thanks on other people’s threads isn’t a meaningful comment. I’m almost certain the moderators won’t have a problem with you saying thanks on your own thread to people that have helped you with a problem :slight_smile:

Hey there, sorry I didn’t reply – Sometimes SP says, leave a comment that is meaningful and saying “thanks” isn’t a good reply lol, othertimes I just forget. Anyways I read the links and it’s still a bit tricky but I follow the general idea. It’s actually really intelligent, the 32 bit vs 64 bit im not going to touch for now tho

+1 for Ernie1s suggestions, that second one is wonderful - and really made it click for me.

Sometimes its hard to get your head round why or where you’d use bitwise values, here’s an old thread with me showing my ignorance as usual.

Still, it might shed some light for you.

Very good place to learn here and [url=http://www.litfuel.net/tutorials/bitwise.htm]here