For questions regarding the RS232 serial interface standard - its control and usage.

The Electronic Industry Association (EIA) defined the RS232 standard in 1962. RS232-C, which predominates in computing, in 1969.

The standard has been used ever since to enable interoperability of computer systems and peripherals.

Use the tag for questions regarding how the standard works, either in general or on a specific retrocomputer or peripheral.

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