Definitions for "COM Port"
Keywords:  serial, port, mouse, modem, ibm
A communications port is a serial port on a computer. Data traveling through a serial port will be transferred single file, one bit at a time (i.e. in a series). Serial ports are rather like a two-lane highway. Data can only travel one bit (one car) at a time in one direction. The following is a list of available COM Ports and their default resources: Port Address IRQ COM 1 03F8 COM 2 02F8 COM 3 03E8 COM 4 02E8 As you can see, COM1 and COM3 share an IRQ as do COM2 and COM4. Most systems have the mouse configured to COM1, the modem to COM2, and do not have any devices assigned to COM3 and COM4. With this configuration, the mouse and modem can work together without conflicts. However, if devices are added to COM3 and COM4, it may be advantageous to manually configure their IRQs in order to avoid conflicts with COM1 and COM2.
Communication or serial port on PCs of the Intel variety usually used for a data communication interface
The serial communications port on a Windows-compatible PC.
Keywords:  occupied, spot, thing, unique, inside
a unique spot inside the computer that can only be occupied by one thing at a time
Keywords:  track, video
Composite Track Composite Video