Computer is used in all the fields nowadays. There are millions of people getting degrees in computer subject but still the scope of computer is vast. All the companies are making their machines run by computer so the load of manual power decreases. Computer can control and monitor the hardware or big factory machine more accurately than a human can operate. All the machines now operate on some type of software and these software are made by computer programmers.
As you go to shops then you can watch the accountant have computer to manage the prices of things. And in accountant firms now software are used to make balance sheet and tax calculation. If you have know-how of computer languages then I want to tell you that java has the most demand in market now because there are more applications build on java and java programmers are less in quantity. Php has also good demand in market. The security of .net applications is high than php. As all the industries are now shifting their work to computer so the scope of jobs in computer field is very bright in the future.
In hospitals all the machines are now operated by computers. The patients profile and records are now saved and managed by computers. These all software are also been updated so there are certainly people required to update and make these software. You daily watch TV ads, these TV ads are made by computer graphic designers and animators. The cartoon movies you watch on dvd are also made by computer. Online banking is also done by the IT professionals.