The World Wide Web
The World Wide Web is a network that interconnects thousands of millions of computers around the world, can be considered as a global repository. The World Wide Web is an architectural framework that allows access to linked documents spread across millions of machines on the Internet.
So the Internet is a powerful communication tool and offers a vast and varied amount of information from many different subjects. It is also used for data transfer and can work with file types such as documents, images, audio, video and more.
The Web is seen by the user as a global collection of documents, these documents are typically called pages or Web pages only. Each page can contain links, better known as links to other pages when the user clicks one of these links is taken to the next page, this idea of a page to point to another is known as hypertext, the second concept was created by a professor at MIT (Massachusetts Institute of Technology), Vannevar Bush in 1945, well before the creation of the internet.
The HTTP protocol
HTTP – Hypertext Transfer Protocol is an application layer protocol of the Internet. HTTP is divided into two parts, the client program and dedicated server program, both programs run on different machines talk to each other by means of HTTP messages. HTTP defines the structure and these messages are exchanged between the client and server.
The web pages consist of documents or files of various formats as discussed above, these pages are built with HTML (HyperText Markup Language) which is the standard language for programming web pages, built in the page HTML is interpreted by a browser, which is regarded as HTTP client. The text pages or HTML documents are also considered by the HTTP protocol.
A web page (also called document) is built of objects. An object is simply a file – such as an HTML file, a JPEG, a GIF image, a Java applet, an audio clip and so on – you can access with a single URL. Most web pages are constructed on HTML file base and several referenced objects. For example, if a web page contains an HTML text and five JPEG images, so it will have six objects:
File-based HTML
Web pages are on a web server, with may be several other pages. The customer or user accesses the page through a browser that interprets the HTML code and builds the page that is being viewed by the viewer. A simplified explanation of the operation would be as follows: the client makes a request for a page to the server via HTTP to the client and the server responds with the requested page, as can be seen in figure mentioned below.
It is imperative to have a good dedicated hosting service in order to devote attention only on your project. When choosing a hosting for your website, it is very important to check and compare the different hosting companies out there.
There Are Three Important Aspects To Consider while Choosing Dedicated Hosting:
1) Customer Service
Considered by many, the most important point that must be taken into account and see if the company has manuals to resolve our concerns, direct contact with technical support, ticketing systems, chats …
Responsiveness to have a hosting company is highly appreciated by anyone on the hosting. Everyone can appreciate the response time for problem solving but more than an hour may be as a weak point in the service.
2) Quality
How can we find out? Discusses the company’s Web subjectively and always looking for their professionalism
Hosting companies usually offer all its services with the highest quality possible and do not want to hinder the development of any web project.
Participate in communities or forums where you can ask former clients and hear their experiences.
We encourage you to comment on the different “microsites” that each company has.
3) Price
You have to make a connection between what we have and how much we want to spend. [[Normally if you are not looking to spend more or less money on the hosting plan, but it has the best value for money.]]
Currently there is already a great offer in the Indian market. Great to have in mind is that the geographic place where you have your hosting influences very clearly in the natural position in Google.
Work in modern organizations is difficult to imagine without a server. Without it, data is disjointed, is stored on different computers and even when using network, is quite difficult to pull together when needed for the job. And so what about a situation when database is in daily use? You could never do this without a server.
Previously, many organizations are saved on the server using this as a regular computer. They did not meet the main requirements for servers, but this was ignored in order to save. As a result, when the computer is denied, information is lost, which cost far more than it would cost a dedicated server. Or, if you need to increase the capacity of the system, had to buy a new computer, which is why, again, the economy turned out to be doubtful.
Performing even the simplest functions of the office server, such as mail-server, file / print server, shared Internet access, applications for small workgroups, the server for small databases, the personal computer is subjected to the voltage for which it is perfect. Mode without turning off the power for which it is not intended, wears all parts of the machine physically, and it may be said to be destroyed in one or two years. The velocity of its work is often a serious impediment to business. And in that moment when the personal computer “dies”, with it freezes all the activities of the firm, the entire database, all the contacts and stuff which was on the server. This can be compared with a small disaster for the company.
To solve a similar problem, a server specialized computer can be used that is designed for this purpose. But first, to understand the difference between a server and personal computer is important.
First of all (and this is probably the most important) – the server differs a great in reliability. The fact that failures of servers come in two forms – one is planned when they take the technical work (maintenance, upgrades) and unplanned, when the server “lies”. In the first case, the server shuts down intentionally, in the most convenient time and usually in such cases, it does not bring inconvenience to users virtually.
The second case – the theme for the subject of conversation. The fact that most things on the server can be changed at run time and has only one element fail, the person who looks after it, right there, it should make a dead piece of labor. These details are most often going down the fans and power supplies (if not supported by redundancy), with hard drives and expansion cards. Thus, there will be no downtime. That is, unplanned downtime can occur only because of IT-specialist, if he had not found problem on time and did not eliminate it, if one or more hard drives and so on are out of order. Moreover, until now there are companies where the leadership sees nothing wrong with that server is also a working machine programmer. This leads to the fact that the additional software installed is conflicting with the system, causing disruptions.
In addition, the server may refuse to work if it is subjected to intentional remote attack. It can be organized as a local area network and the Internet. Therefore, you must take care of server security.
In recent years, various databases are greatly developed, changing the format for storing and processing data, database servers came. File servers are only for storing user files and archives.
Increasingly, networks are now based on terminal servers. This system allows you to save users in the workplace, as all software and files are located on the server and the terminal can be a pretty simple machine. In addition, significant savings are achieved at the expense of installing and maintaining software. For serious work, it is important and acquired servers are much more carefully maintained.
Thus, buying a server and using it for its intended purpose, rather than establishing an ordinary personal computer, the company invests in its future, because this investment will pay for itself through increased productivity, saving time on maintenance and improving stability.