Did you know that my Terry’s Computer Tips email newsletter is published internationally and my Terry’s Computer Tips web site is viewed by visitors from at least 48 countries? This really is an International Internet.
During a recent week, I had visitors from the United States, the United Kingdom, Canada, Australia, Netherlands, India, Norway, Belgium, Spain, Turkey, Sweden, France, Germany, Republic of Korea, Philippines, New Zealand, Singapore, Malaysia, Finland, Mexico, Italy, Poland, South Africa, Switzerland, Ireland, Saudi Arabia, Denmark, via Satellite ISP, Israel, Bangladesh, Japan, Czech Republic, Islamic Republic of Iran, Puerto Rico, Belarus, Malta, Estonia, Costa Rica, Austria, United Arab Emirates, Qatar, Barbados, Pakistan, Brazil, Hong Kong, Indonesia, Lebanon, Guyana and a few where the IP address was not geographically-specific. The list is in order of the number of visitors.
Did you notice the key word near the end of the list? The IP address is the key.
In order for your computer to talk to my web server, or to any other computer on the Internet, it has to provide an "Internet Protocol address" — an IP address.
Although you might think of my web server as www.TerrysComputerTips.com, the Domain Name System (DNS) exists only to make Internet navigation easier for you and me, as humans.
Computers don’t need names to work on the Internet. They use IP addresses. The current IP address system is known as IPv4; that is, it is an Internet Protocol address and has 4 sets of numbers, each ranging from 0 to 255. For example, the IP address of www.google.com is 18.104.22.168.
After all these years of Internet growth, we’re running out of IP addresses, though. There’s a new version coming with a lot more capacity called IPv6. The changeover will be gradual (it’s already going on).
For more information, read IP Addresses Explained at Terry’s Computer Tips.