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Web Hosting - The Internet and How It Works In one sense, detailing the statement in the title would require at least a book. In another sense, it can't be fully explained at all, since there's no central authority that designs or implements the highly distributed entity called The Internet. But the basics can certainly be outlined, simply and briefly. And it's in the interest of any novice web site owner to have some idea of how their tree fits into that gigantic forest, full of complex paths, that is called the Internet. The analogy to a forest is not far off. Every computer is a single plant, sometimes a little bush sometimes a mighty tree. A percentage, to be sure, are weeds we could do without. In networking terminology, the individual plants are called 'nodes' and each one has a domain name and IP address. Connecting those nodes are paths. The Internet, taken in total, is just the collection of all those plants and the pieces that allow for their interconnections - all the nodes and the paths between them. Servers and clients (desktop computers, laptops, PDAs, cell phones and more) make up the most visible parts of the Internet. They store information and programs that make the data accessible. But behind the scenes there are vitally important components - both hardware and software - that make the entire mesh possible and useful. Though there's no single central authority, database, or computer that creates the World Wide Web, it's nonetheless true that not all computers are equal. There is a hierarchy. That hierarchy starts with a tree with many branches: the domain system. Designators like .com, .net, .org, and so forth are familiar to everyone now. Those basic names are stored inside a relatively small number of specialized systems maintained by a few non-profit organizations. They form something called the TLD, the Top Level Domains. From there, company networks and others form what are called the Second Level Domains, such as Microsoft.com. That's further sub-divided into www.Microsoft.com which is, technically, a sub-domain but is sometimes mis-named 'a host' or a domain. A host is the name for one specific computer. That host name may or may not be, for example, 'www' and usually isn't. The domain is the name without the 'www' in front. Finally, at the bottom of the pyramid, are the individual hosts (usually servers) that provide actual information and the means to share it. Those hosts (along with other hardware and software that enable communication, such as routers) form a network. The set of all those networks taken together is the physical aspect of the Internet. There are less obvious aspects, too, that are essential. When you click on a URL (Uniform Resource Locator, such as http://www.microsoft.com) on a web page, your browser sends a request through the Internet to connect and get data. That request, and the data that is returned from the request, is divided up into packets (chunks of data wrapped in routing and control information). That's one of the reasons you will often see your web page getting painted on the screen one section at a time. When the packets take too long to get where they're supposed to go, that's a 'timeout'. Suppose you request a set of names that are stored in a database. Those names, let's suppose get stored in order. But the packets they get shoved into for delivery can arrive at your computer in any order. They're then reassembled and displayed. All those packets can be directed to the proper place because they're associated with a specified IP address, a numeric identifier that designates a host (a computer that 'hosts' data). But those numbers are hard to remember and work with, so names are layered on top, the so-called domain names we started out discussing. Imagine the postal system (the Internet). Each home (domain name) has an address (IP address). Those who live in them (programs) send and receive letters (packets). The letters contain news (database data, email messages, images) that's of interest to the residents. The Internet is very much the same.

Great Sources for Free Games on the Internet The Internet is a great source for games, especially of course computer games. Computer games are the biggest hit since they are invented and every year thousands of PC games flood the market. Some of the computer games actually are so expensive that many parents cannot afford them for their children and are looking for alternatives that their children can play. There are actually a vast number of games that are available for free through the Internet and in some cases even as a CD. Freeware, shareware, trial products and even full version of prototypes are available on the Internet. Many pages on the Internet actually specialize in offering freeware or shareware programs. Hobbyist programmers usually write shareware and freeware programs and other programmers, who want to give something back to the community. These programs are not always working one hundred percent and most often there is also no real support for all the programs, but they are free. Freeware in general is a free program that has a copyright. The program is made available free for use, but it cannot be changed or used for development by other developers. Shareware programs are often only free for certain periods of time. After that period the user has to pay for using the software. Shareware programs are a marketing method of big computer firms. It is the try before you buy strategy that is used here. Some companies will offer the full version of the program for 30 days for trial, while others offer a version of the program with reduced functions to give the user a taste and to lure the user to buy the product if he wants to use the rest of the functions. Even thougfh both freeware and shareware are often callled free software, free software is something completely different. Free osftware are programs that are available for free, but generally are also avialble for others to study the code, change and modify or even use the code as a base for their development. In any way, these three major types of free game software can be found on the Internet along with such things as online games. Some of the games can be plauyed online. Evne though the userm ight not own the software, the games can be played for free anytime. The only thing that most of those free onlin game pages require is to sign up to their page for free. For younger hcildren, many of the educational sites offer free preschool and early childhood computer games, that teach children, the shapes, colors, vocabulary, counting and much more. With parental sucpervision such activities are safe for children and can enhance the learning process. Other pages offer free games for older chidlren and adults. While many parents do not constantly check on their chidlren while they are on the itnernet, it is important to keep up to date on their youngsters Internet activites. Many pages are completely safe, but sometimes advertisement to found the free software can be dangerous for young, innocent eyes. For adults, there are even more choices in free games. There are whole communities of gamers, that are connected throughout the world for vieosgaming sessions. Anything form cardgames to wargames can be played for free in some of those communities. All one needs might be a free membership sign up to the web page or the community. All of these sources for games can be found easily by typing the words freeware, shareware, online games into any of the major search engines. But as always, do it with cuation, conisdering the many viruses and spyware programs that aare out there in cyberspace.

Great Free Gift Idea – How to Get Official Presidential Greetings for a Loved One Are you ready for the most official gift idea ever proposed? Do you know someone who enjoys collecting authentic autographs and memorabilia? Or perhaps you know someone who has a good sense of humor and enjoys a gag gift on those special occasions? If this is the case, you may be interested in a great free gift idea—procuring an official presidential greeting for a loved one. Here is the run-down on how you can get a hold of this awesome gift idea. Believe it or not, getting an official presidential greeting is easier than you might think. Did You Know that the White House Offers Free Greetings? It is true—the White house offers free greetings for those very special occasions. These free greetings are official and recognized by the White House and the Office of the President. However, you should know that there are numerous restrictions to procuring these free presidential greetings. Unfortunately, the White House is not currently able to fulfill all the requests for official presidential greetings at this time. However, if you are truly interested in landing a free and very official presidential greeting for a loved one, it is worth giving it a try. As the old saying goes, nothing ventured, nothing gained. How to Make Your Request for an Official Presidential Greeting How can you go about making an official request for an official presidential greeting? There are several ways you can request a presidential greeting directly from the White House. There are several ways to make your official request. There are three basic routes for requesting an official presidential greeting from the White House. You can make your official request for a presidential greeting through fax, by postal mail, or by filling out an online email form. Although no one method appears to be considerable more effective than any other, some successful recipients of an official presidential greeting swear that you are more likely to receive a response if you put in your official request through postal mail or fax. However, this may just be a hunch, because it seems that it may seem harder to ignore a written request rather than a virtual email request. As with anything important, you will want to make your request for an official presidential greeting way ahead of time. For instance, if you want to request an official presidential wedding greeting, you will want to make your request well ahead of time. What Kind of Official Presidential Greetings is You Allowed to Request? Although there is no set guideline about what kind of greetings you can request, there are many standard issue presidential greetings. These include birthday greetings, 50th wedding anniversary and higher, births, Bar Mitzvahs, Bat Mitzvahs, weddings, scouting awards and others. Official Guidelines for Requesting Your Greetings For the official guidelines on how to request official presidential greetings from the White House, check out the official White House website. There you will find the official guidelines on how to request greetings from the White House, as well as how to extend an official invitation to the White House. In general, here are some things to keep in mind. The White House will only send out official greetings to U.S. citizens. You must provide the following information: name of the honoree, address of the honoree, form of address, date of birth, birthday, wedding or anniversary, and the requestor's name and daytime phone number. Be aware that the numbers of requests you can make are limited on a per day basis. Requests for multiple institutional requests must be make by fax or mail on official letterhead. When can you expect your official presidential greeting? In general, greetings will be mailed in approximately 14 days prior to the event that is being recognized by the greeting.