OCR Revision Input and Output Devices

Could be used in a Tablet:

Webcam:

A webcam is a video camera that feeds its image in real time to a computer or computer network. Unlike an IP camera (which uses a direct connection using ethernet or Wi-Fi), a webcam is generally connected by a USB cable, FireWire cable, or similar cable.



Home Button:
Another device is the home button, which lets you go back to the home button and go onto another application.







Accelerometer:
An accelerometer is a device that measures proper acceleration. The proper acceleration measured by an accelerometer is not necessarily the coordinate acceleration.