The small square in it will allow you to scroll through the rest of this page. Just place your mouse pointer over the square, hold down the left click button on the mouse and slide the square up or down. You will see this page move. You are now scrolling. Site A place on the Internet.
Every web page has a location where it resides which is called it's site.
The Internet version of junk mail. Spamming is sending the same message to a large number of mailing lists or newsgroups usually to advertise something. Just as each building on a street has an address, so does each computer on the Internet. The only reason you would need a Static IP Address is if you wish to turn your computer into some sort of server, or if you want the convenience of knowing that every time you connect to your ISP, you're going to use the same IP address. Other examples of uses include using a Static IP Address in conjunction with an email server, a WWW server, or playing a multiuser game with others on the Internet.