Jumper ( computing ) - wikipedia Jumper ( computing ) This is the current revision of this page, as edited by 85.150. 109.64 ( talk ) at 15 : 23, 13 July 2017 ( → ‎ See also ). The present address ( URL ) is a permanent link to this version. Revision as of 15 : 23, 13 July 2017 by 85.150. 109.64 ( talk ) ( → ‎ See also ) ( diff ) ← Previous revision Latest revision ( diff ) Newer revision → ( diff ) This article does not cite any sources. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. ( July 2011 ) Top : jumper block on a hard disk drive with jumper. Bottom : assorted jumpers In electronics and particularly computing, a jumper is a short length of conductor used to close, open or bypass part of an electronic circuit. They are typically used to set up or configure printed circuit boards, such as the motherboards of computers. Contents 1 Design 2 Use 3 Permanent parts of a circuit 4 See also 5 External links Design Jumper pins ( points to be connected by the jumper ) are arranged in groups called jumper blocks, each group having at least one pair of contact points. An appropriately sized conductive sleeve called a jumper, or more technically, a shunt jumper, is slipped over the pins to complete the circuit. Jumpers must be electrically conducting ; they are usually encased in a non-conductive block of plastic for convenience. This also avoids the risk that an unshielded jumper will accidentally short out something critical ( particularly if it is dropped on a live circuit ). Use When a jumper is placed over two or more jumper pins, an electrical connection is made between them, and the equipment is thus instructed to activate certain settings accordingly. For example, with older PC systems, CPU speed and voltage settings were often made by setting jumpers. Informally, technicians often call setting jumpers `` strapping ''. To adjust the SCSI ID jumpers on a hard drive, for example, is to `` strap it up ''. Some documentation may refer to setting the jumpers to on, off, closed, or open. When a jumper is on or covering at least two pins it is a closed jumper, when a jumper is off, is covering only one pin, or the pins have no jumper it is an open jumper. Jumperless designs have the advantage that they are usually fast and easy to set up, often require little technical knowledge, and can be adjusted without having physical access to the circuit board. With PCs, the most common use of jumpers is in setting the operating mode for ATA drives ( master, slave, or cable select ), though this use is declining with the rise of SATA drives. Jumpers have been used since the beginning of printed circuit boards. Permanent parts of a circuit Some printed wiring assemblies, particularly those using single - layer circuit boards, include short lengths of wire soldered between pairs of points. These wires are called jumpers, but unlike jumpers used for configuration settings, they are intended to permanently connect the points in question. They are used to solve layout issues of the printed wiring, providing connections that would otherwise require awkward ( or in some cases, impossible ) routing of the conductive traces. In some cases a resistor of 0 ohms is used instead of a wire, as these may be installed by the same robotic assembly machines that install real resistors and other components. See also DIP switch Jumper cable Pin header External links Wikimedia Commons has media related to Jumpers ( electronics ). Jumper Settings Archive at the Wayback Machine ( archived October 23, 2007 ) Retrieved from `` https://en.wikipedia.org/w/index.php?title=Jumper_(computing)&oldid=790407370 '' Categories : Computer hardware tuning Hidden categories : Articles lacking sources from July 2011 All articles lacking sources All articles with unsourced statements Articles with unsourced statements from October 2013 Webarchive template wayback links Talk Article Talk More Contents About Wikipedia In other projects Wikimedia Commons Български Čeština Dansk Deutsch Eesti Ελληνικά Español Français 한국어 Italiano Lëtzebuergesch Nederlands Polski Português Русский Suomi Svenska Українська 中文 Edit links This page was last edited on 13 July 2017, at 15 : 23. Text is available under the Creative Commons Attribution - ShareAlike License ; additional terms may apply. By using this site, you agree to the Terms of Use and Privacy Policy. Wikipedia ® is a registered trademark of the Wikimedia Foundation, Inc., a non-profit organization. About Wikipedia

Question: what is use of jumper on the motherboard
Answer: to set up or configure printed circuit boards