Learn about the role of the USB interface of the industrial computer

Everyone has to be very clear about the USB interface. Isn't this common on USB ports that phones should see?
Yes, the USB interface works with a USB cable. However, what is the function of the USB interface of the industrial computer? I'm sure some new customers still don't know much about this. First of all, let's talk about the definition of USB interface, USB is the abbreviation of Universal Serial Bus in English, which is an external bus standard used to regulate the connection and communication between computers and external devices. It is an interface technology applied in the PC field. The USB interface supports plug-and-play and hot-plugging of devices. USB was proposed by Intel, Compaq, IBM, Microsoft and many other companies at the end of 1994.
Second, we understand the difference between USB2.0 and USB3.0, the current difference is popular.
In order to distinguish the USB2.0 and 3.0 ports of industrial computers, please note that the colors of these two ports are different. The 3.0 USB interface has a blue core. 2.0 USB ports are usually black or white. In terms of transfer speed, USB 3.0 transfers files faster than 2.0. The maximum transfer rate of USB2.0 is 480Mbps, or 60MB/s. The actual transfer rate of USB3.0 is about 3.2Gbps (ie 400MB/S).
Finally, let us understand the role of the USB interface of an industrial computer. The USB interface and COM interface of an industrial computer have similar functions and are used in conjunction with external devices.
Our commonly used industrial computer USB interfaces are used for:
1. USB mouse, keyboard device, compartment, gamepad;
2. Industrial printers, scanners;
3. Camera, data flash disk, SD connection slot;
4. External optical drive, mobile hard disk, mobile phone charger, USB network card;
Five, communication equipment ADSL modem, cable modem.
In addition, the USB interface can also be connected to a USB night light, a USB small fan, a USB heater, etc., and has a charging function. However, USB ports are rarely used on industrial computers for these little things.
In summary, the USB interface and COM serial port of the industrial computer are used on external devices, and there are not many basic functions. Depending on the standard interface on the external device, choose whether the industrial computer uses a USB interface or a COM serial port.
However, for an industrial site using vibration, stability of the interface between the industrial computer and the external interface device is required. Usually, the USB interface is not used, but the COM serial port is used. This is because a double nut can be used to lock the COM port.