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'''Universal Serial Bus (USB)''' is a high speed [[serial bus]] used to [[interface]] computer and other devices. USB allows plug and play connections (that is devices can be connected and disconnected with minimal configuration on the part of the user, and without the need to restart the host computer) between devices such as [[modems]], [[digital cameras]], [[hard drives]], [[keyboard]]s and [[mice]]. The standard is supported by a number of large computer manufacturers including [[Apple Inc.]], [[Hewlett-Packard]], [[Intel]], [[Microsoft]] and [[NEC]].
'''Universal Serial Bus (USB)''' is a high speed [[serial bus]] used to [[interface]] [[computer]]s and other devices. USB allows plug and play connections (that is devices can be connected and disconnected with minimal configuration on the part of the user, and without the need to restart the host computer) between devices such as [[modems]], [[digital cameras]], [[hard drive]]s, [[keyboard]]s and [[Computer mouse|mice]]. The standard is supported by a number of large computer manufacturers including [[Apple Inc.]], [[Hewlett-Packard]], [[Intel]], [[Microsoft]] and [[NEC]].
<br>The current USB Standard is 2.0 which has a maximum data transmission rate of 480Mbps although many older computer only support the older USB 1.1 standard. Several types of connectors are available for USB connections and the usage varies on the devices being connected.
<br>The current USB Standard is 3.1, which has a theoretical transfer rate of about 10GB per second. 3.1 is, like past versions, backwards compatible, though, so older styles re sill usable in modern [[computer]]s. There are also two types of USB-- type A and Type B. Type B is not as common, but is used for some devices such as printers and hubs. Type A is used for almost everything else, some of which are listed above. Perhaps the best-known Type A devices are USB Flash Memory drives.
<br>USB Mass Storage "Flash Drives" are small, removable, rewritable and have nearly completely replaced floppy disks. As the cost of memory decreases the size of the drives increases. Such drives have usage in some MP3 Players, such as the [[iPod]] nano, or in computer systems administration or repair in addition to data storage and transfer.
<br>USB Mass Storage "Flash Drives" are small, removable, rewritable and have nearly completely replaced floppy disks. As the cost of memory decreases the size of the drives increases. Such drives have usage in some MP3 Players, such as the [[iPod]] nano, or in computer systems administration or repair in addition to data storage and transfer.
==History==
{| class="wikitable"
|-
! Version !! Theoretical Speed !! Release Date !! Notes
|-
| 0.8 || || December 1994 ||
|-
| 0.9 || || April 1995 ||
|-
| 0.99 || || August 1995 ||
|-
| 1.0 || || January 1996<ref name="diffen">http://www.diffen.com/difference/USB_1.0_vs_USB_2.0</ref> ||
|-
| 1.1 || 1.5 Mb/s (LowBandwidth) or 12 Mb/s (Full Bandwidth) || August 1998 ||
|-
| 2.0 || 480 MB/s || April 2000<ref name="diffen">http://www.diffen.com/difference/USB_1.0_vs_USB_2.0</ref> ||
|-
| 3.0 || 4.8 GB/s<ref>http://www.pcworld.com/article/186566/USB_3_Finally_Arrives.html</ref><ref>http://www.everythingusb.com/superspeed-usb.html</ref> || November 2008 || Sometimes called "3.1 Gen 1"<ref name="msi.com">https://gaming.msi.com/article/usb-3-1-gen1-gen2-explained</ref>
|-
| 3.1 || 10GB/s || January 2013 || Sometimes called "3.1 Gen 2"<ref name="msi.com">https://gaming.msi.com/article/usb-3-1-gen1-gen2-explained</ref>
|}
==References==
==References==