How many kinds of computer monitor interfaces are there?

As one of the important hardware of computer, the main function of computer monitor is to output images and display characters, and the computer monitor interface is an indispensable part of computer monitor. How many kinds of computer monitor interfaces are there?

1, VGA is our most common display interface with trapezoidal shape. One * * * has 15 stitches, and there are three rows of stitches with 5 stitches in each row. Its working principle is to convert the digital signal in the computer into an analog signal, and send the signal to the display, which then converts the analog signal into a digital signal, and finally forms a picture on the display.

2.DVI digital interface is a popular interface at present, and its shape is relatively large. We often use DVI and DVID. DVI is three rows of 24 needles plus a flat mouth, DVID is three rows of 24 needles plus a flat mouth, and there are four small needles around the flat mouth. Its working principle is to transmit computer signals to the display without complicated conversion process.

3.HDMI is based on DVI. We can see its interface in notebook computers and assembled computers. It is compact in appearance and simple in working principle, and can directly transmit images without signal conversion.

At present, there are still many kinds of monitors, but there are only a few interfaces. We commonly use VGA, DVI, HDMI and other interfaces. The principle of these interfaces is to convert the signal generated by the computer graphics card to the display, and then we can see it.