In network terms, they converge rather than diverge branches. Archived PDF from the original on 2 November It optionally uses a different connector called USB Type-C, which is reversible meaning you can plug it in both ways. Interfaces are listed by their speed in the roughly ascending order, so the interface at the end of each section should be the fastest. Additional USB hubs may be included in the tiers, allowing branching into a tree structure with up to five tier levels.

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USB cables are available in multiple lengths, from around 3 feet to just over 16 feet.

Find out about upcoming events. Each endpoint can transfer data in usb universal serial bus direction only, either into or out of the device, so each pipe is uni-directional. Systems Monitoring for Dummies: Archived from the original PDF on 13 March There is always one hub known as the root hub. Unoversal computer hardware that contains the host controller and the root hub has an interface for the programmer.

USB Universal Serial Bus Tutorial

This means that univrsal device can be plugged into a free socket, and simply work. It connects peripheral devices such as digital cameras, mice, keyboards, printers, scanners, media devices, external hard drives and flash drives.


With the importance of USB already established it did usb universal serial bus take long for the new standard to be adopted. A USB host may have multiple controllers, each with one or more ports. However, care should be taken when hot swapping certain devices such as a camera; damage can occur to the port, camera or other devices if a single pin is accidently shorted.

A USB interface can be designed to provide the best available latency for time-critical functions, or can be set usb universal serial bus to do background transfers of bulk data with little impact on system resources. The USB specification requires that the cable plug and receptacle be marked so the user can recognize the proper orientation.

USB – Wikipedia

Similarly, if you connect a USB 3. Another use for USB mass usb universal serial bus devices is the portable execution of software applications such as web browsers and VoIP clients with no need to install them on the host computer. Archived from the original xerial 23 February With USB defining its place in the market, other developments of the standard were investigated. Archived from the original on 2 December However, USB has the advantage of allowing hot-swappingmaking it useful for mobile peripherals, including drives of various kinds.


The type B connector also usb universal serial bus uniiversal and supplies power.

USB – Universal Serial Bus Overview

Retrieved 5 September During the design phase of USB 2. Even nuiversal USB 3. These allow multiple computers to access the same peripheral devices. Device class is unspecified.

Today, the USB-IF has over member companies worldwide, and its board of directors includes representatives from: Retrieved 20 July USB in the future Usb universal serial bus the SuperSpeed USB architecture was originally developed, requirements for future performance increases were factored into the solution.

The root hub is built into to the host controller. The term endpoint is occasionally used to incorrectly refer to the pipe. USB is ysb most successful usb universal serial bus in the history of personal computing and has migrated into consumer electronics CE and mobile products, creating an ease of use that was previously unheard of.

Keyboardmousejoystick. Planning a Complete Security Strategy: Retrieved 20 October