What is port, use of serial and parallel port?
The peripheral devices are connected to the system unit through a special device
called the port. It is an interface or connecting socket. It provides a
standard, way of communication between the computer and its input and output devices
Use of serial port:
Serial ports provide connection for transmitting data one bit at a time. Serial
ports are often referred to as communicating (COM) ports. The mouse, keyboard
and modem are usually connected to the serial ports.
Use of parallel port:
A parallel port provides a connection for transmitting data 8-bits at a time. Therefore, it is eight times faster than serial port. The printers and scanners are connected to the parallel ports. Parallel ports are often referred to as Line Printer Ports.