Binary = Please Help

barneysplash

Hi all

Doing a part time course in computers, they've gone into detail abot binary.

Not something I'm familiar with - anyone got any tips from your learning experience, or any simple 1+2 = 2 tutorials?

Have done a bit of googling, but only found flashy and confusing tutorials that make my head hurt


Thanks

Barney

Sherifu

There are 10 types of people in the world, people that know binary and people that don't.

Decimal 0-9
Binary 0-1

http://en.wikipedia.org/wiki/Binary_numeral_system#Representation

bren2002

Well for starters 1+1 does not equal 2 in this world!!

Personally I always found it easier to convert binary to hexidecimal do the maths and then convert back to binary.

Fremen

Binary is just another system for representing numbers. The rightmost digit counds how many ones there are in the number, the digit left of that counts how many twos, the digit left of that counts how many fours, the digit left of that counts the eights and so on.
Then you just sum up the counts and it tells you what number you have. Decimal does essentially the same thing, using tens.
If I were you, I'd work through the wikipedia page, slooooowly!

Reading maths isn't like reading a novel. Read through the page with a pen and paper, and go slow. It'll eventually make sense if you're patient.

bren2002

PS - agree, there are only 10 types of people in the world

bren2002

That wikipedia page doesn't look easy to follow, have a mouch around the web for something else.

far2gud

This is a great site, the first few slides deal with binary math even if the tutorial is geared towards ip addressing.

http://www.learntosubnet.com

Ghost Train

to convert decimal to binary and binary to decimal
for 8-bits, each bit represents a decimal value (doubles each bit)
128|64|32|16|8|4|2|1
10000000=128
00010000=16
10010000=128+16=144

to do the reverse decimal to binary
decimal number 133 contains 128+4+1=10000101

bren2002

Try this site
http://www.blaenkdenum.com/binary-and-hexadecimal/

barneysplash

Your kind responses have restored my faith in boards no end, fair play to you all.:o

Keano

bren2002 wrote: »

Try this site
http://www.blaenkdenum.com/binary-and-hexadecimal/

Cheers for the link - I too have to learn a bit of binary and after a few times reading that page I think I have a good understanding!