However, RS232 ports remain in use today in the industrial sector. It remained in widespread use for serial communications between PCs, printers and other peripherals until the late 1990’s, after which it was superseded by USB. Once a standard feature on personal computers, the RS232 serial port was one of the first used to connect data terminals to mainframe computers. Here we examine the history of the 3 serial interfaces used today and explore the common issues found with them and the benefits of each of the 3 different connections.
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