As you create your site, you will be automatically be publishing it to your own computer.
To publish the site on a remote computer all you have to do is enter your domain name, user name and password (provided by your host) in an FTP (file transfer protocol) screen, and click “Publish Site”. Depending on the size of your site and your internet connection speed, your site will be uploaded in a matter of minutes or seconds.
Once published, if your domain name location has been propagated, you will be able to enter your domain name in your browser and your site will appear.
Inevitably, you will probably want to modify your site. When you do, the program you will be using will allow you to upload changes or additions again with a few simple clicks of your mouse.