Do you know the display output interface on the computer

Many computer beginners want to learn some computer knowledge, but they don't know where to start. The following small series introduces some display output interfaces on the computer for everyone, and hopes to help beginners. [VGA] VGA interface, also known as D-SUB interface. Born after 80. There are male and female. The head on the general line is a male, and the head on the computer is a female. The so-called male is the pin, and the wood is the pinhole. This interface has 15 pins, three rows, and a T-shaped periphery. The high frequency signal of the analog signal is transmitted, and when it is disturbed, the display may show a water ripple. If the pins are broken or the contact is not good, color casts may occur, even without images. When plugging the wires, it is best to screw the screws on the left and right sides, otherwise the pins may be bent or even broken. VGA is relatively old, although it is still on the desktop computer, but some graphics cards, ultra-thin notebooks are no longer available. [DVI] This is an interface that is quite tangled. Let’s take a look at the long sample. It’s really drunk to watch. DVI-I can transmit digital signals and analog signals. DVI-A, transmitting analog signals. DVI-D, transmitting digital signals. Note that when pairing with the display, if there is only a VGA port on the display and a DVI interface on the computer, then we need a "Adapter". There is no signal when the adapter is selected incorrectly. The VGA signal is an analog signal, so the adapter needs I or A type. If it is a D type, there is no image display. Similarly, this interface has the male and female points, the female or the video card is the female head, and the line is the male head (the adapter is of course also the male). [HDMI] This is the legendary HD interface. Let's look at it first.