![]() ![]() RS-232 is intended to be used with interfacing a modem or a similar device. There have been newer technologies such as Ethernet, FireWire and USB which transfers data serially, but the older RS-232 standard is still identified as the “serial port”. Information is transferred one bit at a time through serial ports. ![]() Serial port is a physical interface used for serial communication. Serial ports transfer data one bit at a time using a single pair of wires, while parallel ports transfer multiple bits at a time using a group of wires. Based on the signal transfer, ports are divided in to two groups as serial and parallel ports. A port (derived from Latin word “porta” for door) is a physical interface that connects a computer to other computers or hardware input/output devices. ![]()
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