Computer
The word computer comes from the latin word "compute" which means to, "to calculate." A Computer is a electronic machine that can solve different problems.A computer is combination of Hardware and Software. It can not be performs without Hardware and Software.Computer has two device part one Input device and another is Output device. Now we have a question in our own mind what is Input and Output device.
Input Device: When a human give some instruction to computer for perform it,which device is using for this task,called Input Devices. For example,Keyboard,Mouse,Trackball,Joystick,Electronic Pen,Touch Screen,Data Scanning Devices,Image Scanner,Optical Character Recognition(ORC),Optical Mark Reader(OMR),Digitizer etc
Output Device: When computer give result of human instructions which devices is using here is called Output Device. For example Monitors,Printers,Projector,Speakers etc.
Some importance Feature of Computer
As we know computer is very importance part of human's life. So now we will discuss on importance feature of computer.
1.Speed: Computer is very fast machine.You can performs many task at a time and it will give you return in microseconds and milliseconds.
2.Accuracy : If we will talk about accuracy then we do not have any doubt on this machine. Actually, it has already design for purpose of accuracy in minimum time.
3. Diligence: It is very diligence machine. It can work without feel tiredness,lack of concentration,fatigue etc.
4.Versatility: It means that you can many performs at a time. You may use your computer prepare payroll slips.
5.Power Of Remembering: Computer has power to store any type of information and data, you can recall any type of information & data at any time.
6.No IQ: Computer do not have any IQ.It do not have any mind. It is totally Dumb machine. It is work on user's instructions.
7.No Feeling: Computer is totally apart from human because human has emotions or feelings,knowledge and experience. It does not distinguish between user.
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