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A parallel port, on the other hand, is an interface through which the communication between a computer and
its peripheral device takes place in a parallel manner i.e., data is transferred in or out parallelly or simultaneously
using more than one communication line or wire. Printer port is an example of a parallel port.
Video Ports
Video Graphics Array (VGA): It is found in computers, projectors, video cards and many TVs. The connector
is called DE-15. It is a D-shaped sub connector consisting of 15 pins in 3 rows.
With the increase in the use of digital video, VGA ports are gradually being replaced by HDMI and Display
Ports. Some laptops have extra on-board VGA ports to connect to external monitors or projectors.
Digital Video Interface (DVI): It is a high-speed digital interface between a computer (CPU) and a display
device like a monitor. It was developed to replace the VGA technology. DVI-I, DVI-D and DVI-A are the
common types of DVI connectors.
Display Port: It is a digital display interface with multiple channels for audio and other forms of data. It can
replace VGA and DVI ports as the main interface between a CPU and monitor. The latest version of Display
Port is 1.3 which supports resolutions up to 7680 X 4320.
igh Definition Media nter ace DM : It is a digital interface that helps us to connect High Definition
(HD) and Ultra High Definition (UHD) devices like computer monitors, HDT s, Blu-Ray players, gaming
consoles, High Definition cameras, etc.
Universal Serial Bus (USB)
The USB port is used to transfer data. It acts as an interface for peripherals and a power supplier for devices
connected to it. USB replaced serial ports, parallel ports, game ports and power chargers for portable devices.
There are various kinds of USB ports: Type A, Type B, Mini USB, Micro USB and Type C.
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