A serial mouse, some older dot matrix printers...
Serial printers are connected via the serial (COM) port of the computer. "Non-serial" printers are connected through another interface, such as the parallel port, USB, ADB. FireWire, etc...
In the past external modems connected to the COM (or serial) port. However, most modern external hardware is USB these days, modems are no exception.
Computer peripherals are connected to ports. For instance, a printer may be connected to a serial or parallel port. Modern keyboards and mice are commonly connected to the computer using the USB port.
Mrs. Purisima
usb port driver, serial adapter,
To provide the exchange of data, and also to power or charge the devices connected. It is an acronym for universal serial bus port.
A USB to serial cable is used to connect a device to the computer's USB port. Examples of devices that might be connected in this way are digital cameras, modems and PDAs.
The computer does not have to be connected to the internet at all for the port to be open, or listening.
A serial port can be connected to numerous devices; pretty much any device that has another serial port. Examples include: Modems, serial mice, serial printers, bar code readers, digital scales, data acquisition equipment, pumps, flow monitors, radios, etc. I have a ham radio receiver that is controlled completely through a serial port and custom software; and I am writing a custom piece of software right now that connects through the serial port to a digital scale for process automation.
A keyboard can be connected to PS2 port or a USB port
The port can be enabled or disabled through the CMOS setup.
No. VGA port is not either serial or parallel port. It is a different interface. If you need a serial output, you need a VGA to serial converter.