Advertisement
Help Keep Boards Alive. Support us by going ad free today. See here: https://subscriptions.boards.ie/.
If we do not hit our goal we will be forced to close the site.

Current status: https://keepboardsalive.com/

Annual subs are best for most impact. If you are still undecided on going Ad Free - you can also donate using the Paypal Donate option. All contribution helps. Thank you.
https://www.boards.ie/group/1878-subscribers-forum

Private Group for paid up members of Boards.ie. Join the club.

Binary = Please Help

  • 29-03-2008 06:51PM
    #1
    Closed Accounts Posts: 1,205 ✭✭✭


    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 :confused:


    Thanks

    Barney


Comments

  • Registered Users, Registered Users 2 Posts: 17,727 ✭✭✭✭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


  • Registered Users, Registered Users 2, Paid Member Posts: 1,223 ✭✭✭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.


  • Registered Users, Registered Users 2 Posts: 2,481 ✭✭✭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.


  • Registered Users, Registered Users 2, Paid Member Posts: 1,223 ✭✭✭bren2002


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


  • Registered Users, Registered Users 2, Paid Member Posts: 1,223 ✭✭✭bren2002


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


  • Advertisement
  • Closed Accounts Posts: 299 ✭✭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


  • Registered Users, Registered Users 2, Paid Member Posts: 31,117 ✭✭✭✭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


  • Registered Users, Registered Users 2, Paid Member Posts: 1,223 ✭✭✭bren2002




  • Closed Accounts Posts: 1,205 ✭✭✭barneysplash


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


  • Moderators, Recreation & Hobbies Moderators, Social & Fun Moderators, Sports Moderators Posts: 12,810 Mod ✭✭✭✭Keano


    bren2002 wrote: »
    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!


  • Advertisement
Advertisement