Computer is the machine which can help to solve the problem in not time. Computer was invented at first to do the calculation. Computer was about the size of a room when a scientist invented the computer for the first time. Computer has taken about a century to reduce into the size what we are using at our house and other places. It is also in the size which can fit in pockets.
Almost ninety percent of the machines which work on its own are monitored by computer. When the computer was created it had lots of different features which are not present in present generation computers. Computers are very fast to perform any type of calculation. Computers can be used to create another computer.
Computer played a great role in the growth of technology. Without computer one can consider there would have been no improvement in the technology what we are using now. Computer when created did not have the mouse that we are using now a days. The mouse was made like a wheel and it was not called as mouse.
Computer wheel was used to steer the direction of the cursor kind of pointer, when the computer was created. The wheel was looking like a steering wheel of a car. The keyboard was like a bigger version of typewriter. It was looking like a huge typewriter added into a machine. There was a huge series of meter gauges connected to check a lot of things working with computer.
The pressures, the temperature of the machine, the level of power supply, like such, there was lot of gauges that were embedded with the computer. That part of earlier computer with gauges can be called as central processing unit of a computer. The same central processing unit used in older times has been made into the smaller version that we use now.






