Remote Control
Remote control devices are used for transmitting data when the user is at some distance from the processor. Devices such as video recorders can accept data which is programmed into the system from a remote handset. Special keys for certain tasks or selections are usually found on the handset. An infrared sensor on the main processing unit picks up the signals when keys are pressed. It is used to enter data from a distance.
Advantages:
• The device provides the user with the convenience of inputting and working, away from the processing unit.
Disadvantages:
• Small remote devices can easily be misplaced.
• The unit and remote need to be quite near to each other and should have no other objects between them which may interfere with the signals sent.
