In the world of computing, a is a communication endpoint. A TXT file is the simplest form of data storage—unformatted, universal, and readable by almost any device.
Capturing a stream of raw information coming from a physical serial port (like an Arduino or an industrial machine) and saving it into a permanent text record.
For hobbyists and engineers, the serial port is a lifeline. Imagine a sensor measuring the temperature of a greenhouse. It doesn't send a fancy PDF; it sends a raw stream of numbers. By using tools like the Serial Port Utility or Hercules SETUP , users can "bind" that port to a TXT file.
Transferring data from a serial Port to a text file - Stack Overflow
