Do this by sending your data in one 8-bit byte, or from the equipment sent to the receiving device. Between two machines, so there must be channels for data traveling at least 8 channels to provide electricity through by a parallel cable. Distance between two parallel signal line should not exceed 100 feet because it may cause problems with the signal is lost, the resistance of the cable. In addition to sending data, and there may be other controlling signal pathway, such as parity bits that are used to check the errors of the receiver at the destination, or control. Dialog (hand-shake).
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