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 KVM Switches, Industrial Computer,Industrial Notebook Manufacturer in China |
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What is USB?
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USB (Universal Serial Bus) is the solution for all PC users who want an instant, no-hassle way to connect new hardware like digital joysticks, scanners, digital speakers, digital cameras or a PC telephone to their computer.
USB has become the industry standard primarily because all the major manufacturers collectively agreed to use the design and function of this quick connect technology. Today just about every PC comes with Universal Serial Bus or USB ports. USB makes adding peripheral devices extremely easy. In fact, many computers will even have additional USB ports located on the front of the tower, in additional to two standard USB ports at the back. With USB-compliant PCs and peripherals, you just plug them in and turn them on. USB makes the whole process automatic. It's like adding instant new capabilities to your PC. You never need to open your PC, and you don't need to worry about add-in cards, DIP switch settings or IRQs.
Adding to the appeal of USB is that it is supported at the operating system level, and compared to alternative ports such as parallel or serial ports, USB is very user-friendly. Another USB feature is "hot-swapping". You no longer need to shut down and restart your PC to attach or remove a peripheral. Just plug in the new device and the PC automatically detects the peripheral and configures the necessary software. Other convenient features include providing power to low-consumption devices without the need for an external power supply and allowing many devices to be used without requiring manufacturer specific, individual device drivers to be installed.
USB also lets you connect many peripherals at one time. Many USB PCs come with two USB ports. And special USB peripherals -- called USB hubs -- have additional ports that let you "daisy chain" multiple devices together.
Universal Serial Bus (USB) is a serial bus standard to interface devices. USB was designed to allow many peripherals to be connected using a single standardized interface socket and to improve the plug-and-play capabilities by allowing devices to be connected and disconnected without rebooting the computer (hot swapping). USB is one of the main ways that peripherals connect to computers. USB connections are generally achieved on computers by plugging USB cables into USB ports on computers and peripherals. Multiple USB devices can be connected to each through "hubs" - multiport devices that allow all items connected to them to work with a computer.
The current USB was released and has provided significant advantages through the use of its backward compatibility feature. This allows previous versions of USB to conform to newer applications which is important because as computers age it is increasingly critical to consumers that they be able to utilize still-employed hardware applications that may have already morphed into newer editions, applications and upgraded connectivity.
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