Shulou(Shulou.com)06/02 Report--

This article will explain in detail what usb2.0 means. The editor thinks it is very practical, so I share it with you as a reference. I hope you can get something after reading this article.

Usb2.0 refers to Universal Serial Bus2.0, which is a new interface technology used in the computer field. USB interface has the characteristics of faster transmission speed, supporting hot plug and connecting multiple devices; USB interface has USB1.1, USB2.0, USB3.0 and USB3.1 and so on.

USB (Universal Serial Bus2.0, Universal Serial bus) is a new interface technology used in the computer field. The USB interface has the characteristics of faster transmission speed, supporting hot-swappable and connecting multiple devices. It has been widely used in all kinds of external equipment. There are four (five) USB interfaces: USB1.1,USB2.0,USB3.0 and USB3.1 (3.1Gen 1 and 3.1Gen 2).

Theoretically, the transmission speed of USB1.1 can reach 12Mbps, while that of USB2.0 can reach the speed of 480Mbps, and it can be backward compatible with USB1.1. As early as 1995, personal computers already have USB interfaces, but due to the lack of software and hardware support, the USB interfaces of these personal computers are idle.

After 1998, with Microsoft's built-in support module for USB interface in Windows 98 and the increasing number of USB devices, USB interface gradually entered the practical stage. In recent years, with the popularity of a large number of personal computers supporting USB, it is a general trend that USB has gradually become the standard interface of personal computers. On the mainframe side, the latest personal computers support almost 100% USB; while the external side, and the number of devices using the USB interface is also increasing, such as digital cameras, scanners, joysticks, tapes and floppy drives, imaging devices, printers, keyboards, mice, and so on.

Advantages

Can be hot swappable

This allows users to plug in the USB cable directly when working on the computer instead of repeating the action of "turn off and connect the parallel or serial cable" when using external devices.

Easy to carry

Most USB devices are known as "small, light and thin".

Standard unification

Before the introduction of the USB interface, it was common for everyone to use the hard disk of the IDE interface, the mouse and keyboard of the serial port, and the printer scanner of the parallel port, but with USB, these application peripherals can all be connected with personal computers with the same standard, and then there are USB hard drives, USB mice, USB printers and so on.

Multiple devices can be connected

USB often has multiple interfaces on personal computers and can connect several devices at the same time. If you connect a USB HUB with four ports, you can connect four more USB devices. And so on, connect as many devices as possible and connect your devices to one PC at the same time without any problems (note: up to 127 devices).

This is the end of the article on "what does usb2.0 mean?". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, please share it for more people to see.

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.