INPUT DEVICE-LIGHT PEN
Light Pen is a light sensitive input device.Its shape is similar to a traditional pen.It is used to draw on compute screen or select menues.It is connected by a wire to a computer.It has a device at its tip that emits light.The pen sends information to the computer when user touches the pen on certain areas of a specially designed screen.The information contains the x-y coordinates of the position of pen
Light Pen provides all features of mouse.The user can interact more with applications by using options such as drag and drop .It also provides more active and accurate interaction between user and computer system.Light pen is usually used by engineers and graphic designers.
It is now using by lot of users of computer who feels it much better .
INPUT DEVICE-DIGITAL CAMERA
Digital Camera is an input device.It stores images digitally in its memory rather than recording on film.The pictures taken with a dighital camera can be downloaded on computer system.The pictures can be processed further with graphics programs.The digital photos are limited by the amount of memory in the camera.The main advantage of digtial camera is that making photos is inexpensive and fast.It doesnot require any film processing
Light Pen is a light sensitive input device.Its shape is similar to a traditional pen.It is used to draw on compute screen or select menues.It is connected by a wire to a computer.It has a device at its tip that emits light.The pen sends information to the computer when user touches the pen on certain areas of a specially designed screen.The information contains the x-y coordinates of the position of pen
Light Pen provides all features of mouse.The user can interact more with applications by using options such as drag and drop .It also provides more active and accurate interaction between user and computer system.Light pen is usually used by engineers and graphic designers.
It is now using by lot of users of computer who feels it much better .
INPUT DEVICE-DIGITAL CAMERA
Digital Camera is an input device.It stores images digitally in its memory rather than recording on film.The pictures taken with a dighital camera can be downloaded on computer system.The pictures can be processed further with graphics programs.The digital photos are limited by the amount of memory in the camera.The main advantage of digtial camera is that making photos is inexpensive and fast.It doesnot require any film processing
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