B- background of IT

B- Background of IT system
Servers, browsers, databases are 3 components of the internet. Server computers are devices designed to run an application or applications, often for extended periods of time with minimal human direction. Examples of servers include web servers, e-mail servers, and file servers. A browser is a software application used to locate and display web pages. The two most popular browsers are Netscape Navigator, and Microsoft internet. Data bases are used to as a structured collection of records or data that is stored in a computer system so that a computer program or person using a query language can consult it to answer queries. An example of this is facebook(see diagram 2). They keep the information for facebook is that they used databases, server, and browsers.
Three technological developments that led to the internet are that the internet speed keeps improving. Over the past few years, the amount of information available on the internet has increased enormously and there has been a major demand for high-speed internet. Another development is that now people are being able to exchange audio and video communication other than people having to type everything. Now MSN messenger allows people to have video and audio conversations, where they are able to see each other and communicate, where as before they were only able to chat, or see each other (see in diagram 1). Another technological development is the availability of internet is now world wide. A while back, internet was not available everywhere, and there are still some places that internet is not available in, however now there is an increase of demand for the internet, and now everyone around the world can accesses it.
Three technological trends for the future are that the speed will be increasing, because there will be a higher demand for internet speed. Then movies could be available online, legally. You would also be able to communicate online better, by calling (telephone-like communication).