When you login OS X asks you for a password. This is a great security feature, especially if you have a laptop and you are taking it places. If you have a computer at home or in your study and you are the only one that has physical access to your computer you may want to have OS X automatically log you in. Here is how to turn on the automatic login on OS X.
By default OS X requires you to type in a password and login each time you restart your computer. If your computer is in a secure location, for example your office, you may want to set up OS X to log in automatically for you.
Here is how to do this.