Editing Serial port (section)

===Hardware abstraction===
Operating systems usually create symbolic names for the serial ports of a computer, rather than requiring programs to refer to them by hardware address.

[[Unix-like]] operating systems usually label the serial port devices {{mono|/dev/tty*}}. ''TTY'' is a common trademark-free abbreviation for ''[[teletype]]'', a device commonly attached to early computers' serial ports, and {{mono|*}} represents a string identifying the specific port; the syntax of that string depends on the operating system and the device. On [[Linux]], [[8250]]/[[16550 UART]] hardware serial ports are named {{mono|/dev/ttyS*}}, USB adapters appear as {{mono|/dev/ttyUSB*}} and various types of virtual serial ports do not necessarily have names starting with {{mono|tty}}.

The [[DOS]] and [[Windows]] environments refer to serial ports as [[COM (hardware interface)|COM]] ports: COM1, COM2,..etc.<ref>{{cite news |title=What Is a Com1 Port? |url=https://www.techwalla.com/articles/what-is-a-com1-port |author=Stephen Byron Cooper |newspaper=Techwalla |access-date=2021-09-30}}</ref>