Computer Ports

Computer Ports

1. PS/2 Port 

A hardware interface used to connect a mouse or keyboard to a computer via a 6-pin Mini-DIN plug and socket. Introduced on IBM's PS/2 desktop PC in 1987, the port was later used by all non-IBM PCs, first on laptops, then on desktops. Subsequently, PS/2 connections were replaced with USB. However, in the 2000s, motherboards with PS/2 ports made a comeback for gamers. Due to its interrupt-driven design, the PS/2 interface has a lower latency for the keyboard than USB. Used to connect the keyboard and the mouse to the computer system. The purple port is for the keyboard and the green port is for the mouse. However, USB port is mostly used today to connect the keyboard and the mouse to the computer

2. Parallel Port

A parallel port is an interface allowing a personal computer (PC) to transmit or receive data down multiple bundled cables to a peripheral device such as a printer. The most common parallel port is a printer port known as the Centronics port. A parallel port has multiple connectors and in theory allows data to be sent simultaneously down several cables at once. Later versions allow bi-directional communications. This technology is still used today for low-data-rate communications such as dot-matrix printing.

3. HDMI (High - Definition Multimedia Interface) port

This port can be seen especially in laptops.It connects the monitor, multimedia projector, digital TVs, and digital speakers to the computer. 

4. RJ 45 Port

The RJ45 port is the network port on a computer. This socket has many names. It is also known as the Ethernet port, the network adapter, the network jack or the RJ45 jack. A "port" is another name for a socket on a computer, as is "jack." The RJ45 port is wired directly onto the network adapter inside the computer, and so is the cable interface to that device.

5. Audio Ports/ Jacks

This port connects audio media like microphones, speakers and head phones to the computer system.

6. USB (Universal Serial Bus Port) 

 This port is used to connect many types of input and output devices to the computer.

7. Video port - VGA (Video Graphics Adaptor) 

 This is also called the Graphic Port. This connects the monitor, or multimedia projector to the computer system. (Figure 2.56) The port consists of 15 holes.

8. Serial port

This port connects devices such as modem to the computer. Today, USB port is used instead of the serial port.