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COM (hardware interface)

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COM (Communication port) is the original, yet still common, name of the serial port interface on IBM PC-compatible computers. [1]

15 relations: Bluetooth, Computer, Device file, FTDI, Hardware register, IBM PC compatible, Input/output base address, Interrupt request (PC architecture), Memory-mapped I/O, Parallel port, RS-232, Serial port, Symbol rate, USB, 16550 UART.


Bluetooth is a wireless technology standard for exchanging data over short distances (using short-wavelength UHF radio waves in the ISM band from 2.4 to 2.485 GHz) from fixed and mobile devices, and building personal area networks (PANs).

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A computer is a general-purpose device that can be programmed to carry out a set of arithmetic or logical operations automatically.

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Device file

In Unix-like operating systems, a device file or special file is an interface for a device driver that appears in a file system as if it were an ordinary file.

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Future Technology Devices International, commonly known by its abbreviation FTDI, is a Scottish privately held semiconductor device company, specializing in Universal Serial Bus (USB) technology.

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Hardware register

In digital electronics, especially computing, a hardware register stores bits of information in such a way that systems can write to or read out all the bits simultaneously.

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IBM PC compatible

IBM PC compatible computers are those similar to the original IBM PC, XT, and AT and able to run the same software as those.

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Input/output base address

In the x86 architecture, an input/output base address is the first address of a range of consecutive read/write addresses that a device uses on the x86's IO bus.

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Interrupt request (PC architecture)

In a computer, an interrupt request (or IRQ) is a hardware signal sent to the processor that temporarily stops a running program and allows a special program, an interrupt handler, to run instead.

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Memory-mapped I/O

Memory-mapped I/O (MMIO) and port-mapped I/O (PMIO) (which is also called isolated I/O) are two complementary methods of performing input/output between the CPU and peripheral devices in a computer.

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Parallel port

A parallel port is a type of interface found on computers (personal and otherwise) for connecting peripherals.

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In telecommunications, RS-232 is a standard for serial communication transmission of data.

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Serial port

In computing, a serial port is a serial communication physical interface through which information transfers in or out one bit at a time (in contrast to a parallel port).

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Symbol rate

In digital communications, symbol rate, also known as baud rate and modulation rate, is the number of symbol changes, waveform changes, or signaling events, across the transmission medium per time unit using a digitally modulated signal or a line code.

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USB, short for Universal Serial Bus, is an industry standard developed in the mid-1990s that defines the cables, connectors and communications protocols used in a bus for connection, communication, and power supply between computers and electronic devices.

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16550 UART

The 16550 UART (universal asynchronous receiver/transmitter) is an integrated circuit designed for implementing the interface for serial communications.

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Redirects here:

0x3F8, COM 1, COM 2, COM port, Com1.


[1] https://en.wikipedia.org/wiki/COM_(hardware_interface)

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