laptop is easy to carry and is also equipped with many interfaces. When buying a laptop, we must also choose a practical laptop interface according to our needs. Today, let’s take a look at the common interfaces of laptops.
Laptops have interfaces on the front, back, left and right sides, and generally most of them are left and right. Let’s take two old antique laptops from my house as an example.
is the mouse keyboard PS/2 interface, power interface, LPT interface (usually used to connect old printers or scanners) RJ-11 interface (usually used to connect modem modems, just like the current telephone line interface, with 4 pins inside), VGA interface, RS232 interface (communication interface, 9 pins (DB-9))
is the security keyhole from left to right (function is to prevent theft. You need to purchase a security lock for use with it), VCD optical drive, floppy drive (the floppy disk has been eliminated with a small capacity).
from left to right are headphone interfaces and microphone interfaces (the diameters of headphones/microphone jacks are 3.5mm, so they are also called 3.5mm headphones/microphone jacks.), optical drive, USB interface (blue interfaces are generally USB3.0 interfaces, some computers will be equipped with Type-C interfaces: charging, data transmission, display output and other functions)
RJ-45 interface (8 pins inside, connected by network cable), VGA interface (connecting to the commonly used ports of the monitor, some computers are equipped with DVI interfaces), HDMI high-definition cable interfaces (some laptops will be equipped with quad-side Minis DP interface), USB interface.
card reader slot, memory card connected to the camera, standard SD card.
To sum up: With the update and replacement of computers, the interfaces on the computer will continue to be optimized, which will become more and more convenient and efficient.
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