Computer is used in almost every field in developed countries. Industrial advancement, agriculture, defense, education, commerce and business, medicine, tourism, banking etc., are the core areas where computer science is utilized. Today man can communicate from one part of the world to the other part easily, which is an example of the advancement of computer science. Within a minute, man can communicate through telephone, Telex, Fax & TV from one part of the world to the other. Computer helped in banking network also. Your deposited money in a bank of foreign country can be withdrawn using ATM(Asynchronous Transfer Mode) card or Master Card from the other country, and your hand-prints can be sent to any part of the world at great speed. Computer has its application not only in manufacturing, medical research, education and defense,but it is also used in small business offices to handle day-to-day work easily and efficiently. Due to growing importance and
A servlet is a small program that executes on a server. Just as applets dynamically extend the functionality of a web browser, servlets dynamically extend the functionality of a web server. It is helpful to understand that as useful as applets can be, they are just one half of the client/server equation. Not long after the initial release of Java, it became obvious that Java would also be useful on the server side. The result was the servlet. Thus, with the advent of the servlet, Java spanned both sides of the client/server connection.