USB

In this article we will discuss USB, will make brief discussion on USB, last article we discuss about Overlay Network.

A Universal Serial Bus (USB) is a common interface that enables communication between devices and a host controller such as a personal computer (PC). It connects peripheral devices such as digital cameras, mice, keyboards, printers, scanners, media devices, external hard drives and flash drives.

Universal Serial Bus is an industry standard that establishes specifications for cables and connectors and protocols for connection, communication and power supply between computers, peripheral devices and other computers. Released in 1996, the USB standard is currently maintained by the USB Implementer Forum.

USB connects different devices using a standard interface. Most people use USB for computer mice, keyboards, scanners, printers, digital cameras, and USB flash drives. The standard was made to improve plug and play devices. This means that a device can be plugged into a free socket, and simply work.

USB cables, on the other hand are cables that are popularly used in gathering, transferring and storing data from one device to another. Mostly, USB cables are connected to computer units directly to peripheral devices like mobile phones, cameras, camcorders and printers/scanners.

USB 3.0 ports are backward compatible. However, when a USB 3.0 device is connected to a USB 2.0 port, the data transfer speed will be limited to USB 2.0 levels. USB 2.0 has a black “block” inside the USB port. In contrast, USB 3.0 has a blue “block” inside the USB port.

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