A serial port is a type of communication interface used in computing where data is transferred sequentially, one bit at a time. This contrasts with a parallel port, which transmits several bits concurrently in parallel. The motherboard contains the serial port, which is located on the back of the computer.
What is serial port in computer?
An interface called a serial port enables a PC to send or receive data bits at a time. It is one of the earliest varieties of interfaces and was once widely used to attach external modems and printers to a PC. Scientific instruments, retail till systems like cash registers, and applications like industrial machinery systems all employ modern serial connections.
The data transfer rate of a serial port is slower than that of a parallel port.
Ans. One stream of data can be sent over a serial port at once. Multiple data streams can be transmitted simultaneously over a parallel port. A serial port transfers data one bit at a time, bit by bit. When delivering data, a parallel port sends multiple bits simultaneously.
Ans. The oldest port on your computer is the serial connection, also referred to as an RS-232C port in the trade (legacy technology is referred to as such in the business). Its fundamental form dates back to 1969, and it normally appears as a rectangular port with nine sticking-out pins.