What is Port In Computer - Types of Port In Computer

What is Port In Computer - Types of Port In Computer I hope you like the What is Port In Computer - Types of Port In Computer





What is Port In Computer

What is Port In Computer - Types of Port In Computer





What is the meaning of port on a computer?

A computer port is a connection point or interface between a computer and an external or internal device. Internal ports may connect such devices as hard drives and CD ROM or DVD drives; external ports may connect modems, printers, mice and other devices.

A port is a physical docking point using which an external device can be connected to the computer.
can also be programmatic docking point through which information flows from a program to a computer or over the internet. 


What is the use of port?

A port number is a way to identify a specific process to which an Internet or other network message is to be forwarded when it arrives at a server. For the Transmission Control Protocol and the User Datagram Protocol, a port number is a 16-bit integer that is put in the header appended to a message unit.


Why ports are used on the computer?

In computer networking, a port is an endpoint of communication. Physical as well as wireless connections are terminated at ports of hardware devices. The most commonly used protocols that use ports are the Transmission Control Protocol (TCP) and the User Datagram Protocol (UDP).



Characteristics Port In Computer:-



A port has the following characteristics:





What is Port In Computer





External devices are connected to a computer using cables and ports.
Ports are slots on the motherboard into which a cable of the external device is plugged in.
Examples of external devices attached via ports are a mouse, keyboard, monitor, microphone, speakers etc. 

In computing, a serial port is a serial communication interface through which information transfers in or out one bit at a time. Throughout most of the history of personal computers, data was transferred through serial ports to devices such as modems, terminals, and various peripherals.


  • Used for external modems and older computer mouse
  • Two versions: 9 pins, 25 pin model
  • Data travels at 115 kilobits per second 



Parallel Port


A parallel port is a type of interface found on computers for connecting peripherals. The name refers to the way the data is sent; parallel ports send multiple bits of data at once, in parallel communication, as opposed to serial interfaces that send bits one at a time.



  • Pins: 8 data, 4 output control, 5 input control, 8 ground
  • Used for scanners and printers
  • Also called printer port
  • 25 pin model
  • Also known as IEEE 1284-compliant Centronics port 

PS/2 Port


The PS/2 port is a 6-pin mini-DIN connector used for connecting keyboards and mice to a PC compatible computer system


  • Used for old computer keyboard and mouse
  • Also called mouse port
  • Most of the old computers provide two PS/2 port, each for mouse and keyboard
  • Also known as IEEE 1284-compliant Centronics port 

Universal Serial Bus (or USB) Port

USB is an industry standard that establishes specifications for cables, connectors, and protocols for connection, communication and power supply between personal computers and their peripheral devices.  


  • It can connect all kinds of external USB devices such as external hard disk, printer, scanner, mouse, keyboard etc.
  • It was introduced in 1997.
  • Most of the computers provide two USB ports as a minimum.
  • Data travels at 12 megabits per seconds
  • USB compliant devices can get power from a USB port



VGA Port 


What is Port In Computer


A Video Graphics Array connector is a three-row 15-pin DE-15 connector. The 15-pin VGA connector was provided on many video cards, computer monitors, laptop computers, projectors, and high definition television sets.

What is a VGA input?


VGA stands for "video graphics array" and is a video output connection that is the display standard for PC computers. On the computer, the VGA port is a 15-pin port that is typically blue in color. If you own a TV that has a VGA input, you can directly connect your computer to your TV using a VGA cable.


  • Connects the monitor to a computer's video card.
  • Has 15 holes.
  • Similar to the serial port connector but serial port connector has pins, it has holes. 

Power Connector 



Power connectors are devices that allow an electrical current to pass through it for the exclusive purpose of providing power to a device (not a data stream, for example, or anything more complex).... Power connectors can carry either an alternating current (AC) or direct current (DC).


  • Three-pronged plug
  • Connects to the computer's power cable that plugs into a power bar or wall socket 



Firewire Port 



What is Port In Computer


External connector, similar to a USB port, that provides a high-speed connection between a computer and peripheral devices. Firewire was developed by Apple, Inc. and is based on the standard IEEE 1394 high-performance serial bus. Firewire ports are able to transfer data at a rate of up to 400 Mbps.
Transfers large amount of data at very fast speed.


  • Connects camcorders and video equipment to the computer
  • Data travels at 400 to 800 megabits per seconds
  • Invented by Apple 

Three variants: 



  • 4-Pin FireWire 400 connector
  • 6-Pin FireWire 400 connector
  • 9-Pin FireWire 800 connector 

Modem Port 


Forwarding ports on the modem/router. For some applications (like file sharing software), it is necessary that specific ports on the modem (and router) are forwarded to the computer.
A device which combines modem and router functionality is called a modem-router.


  • Connects a PC's modem to the telephone network


Ethernet Port 


An Ethernet port (aka jack or socket) is an opening on computer network equipment that Ethernet cables plug into. Their purpose is to connect wired network hardware in an Ethernet LAN, metropolitan area network (MAN), or wide area network (WAN). 
An Ethernet port accepts a cable that has an RJ-45 connector.


  • Connects to a network and high-speed Internet.
  • Connect the network cable to a computer.
  • This port resides on an Ethernet Card.
  • Data travels at 10 megabits to 1000 megabits per seconds depending upon the network bandwidth.

Game Port


The game port, originally introduced on the Game Control Adapter, is a device port that was found on IBM PC compatible and other computer systems throughout the 1980s and 1990s. It was the traditional connector for joystick input, and occasionally MIDI devices, until replaced by USB in the 21st century.


  • Connect a joystick to a PC
  • Now replaced by USB.
  • Digital Video Interface, DVI port
  • Connects Flat panel LCD monitor to the computer's high-end video graphic cards.
  • Very popular among video card manufacturers. 

Sockets 


An explanation of each event follows the figure. This is a typical flow of events for a connection-oriented socket: The socket() API creates an endpoint for communications and returns a socket descriptor that represents the endpoint. When an application has a socket descriptor, it can bind a unique name to the socket.


  • Connect a microphone, speakers to sound card of the computer


What is Port In Computer

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What is Port In Computer - Types of Port In Computer
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