Back in the old days the COM port or known as RS-232 (EIA-232 standard) is one of the essential communicati...
Back in the old days the COM port or known as RS-232 (EIA-232 standard) is one of the essential communications protocol and hardware use in many computer system installation start from small UNIX machine to the mainframe. For more information please visit *******www.ermicro****/blog/?p=325