Define ports? Compare and contrast serial ports and parallel ports. | web4study

Define ports? Compare and contrast serial ports and parallel ports.



Ports

 

Ports:

A port is a socket at the back of a computer used to plug-in various devices. Personal computers have various types of ports.

Internally: There are several ports for connecting disk drives, display, controllers, and keyboards.

Externally: Personal computers have ports for connecting modems, printers, scanner and other peripheral devices.

 

Types of ports:

There are two types of port

 

Serial ports:

  1. A port or interface that can be used for serial communication, in which only 1 bit is transmitted at a time, is called serial port.
  2. A serial port, also called a male connector, has 9 or 25 pins
  3. A serial port is a general-purpose interface that can be used for almost any type of device, including modems, mouse, and printers.

 

Parallel ports:

  1. A socket on a computer for transmitting data in parallel, which means more than one bit at a time, is called parallel port
  2. There may be 8, 16, or 32 channels (wires); each channel carries one bit of information. A parallel port also called a female connector, has 25 holes.
  3. It is the kind of port used to connect tape drives, CD- ROMs, extra hard disks, and most of the printers.

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