Storage Devices

ASSIGNMENT#1 ICT PC-WAQAR AHMED BESE-17 A Submitted to: Lec. Bilal Rauf transshipment center Devices threatening disk(HDD) Hard Disk is a non-volatile, random access, magnetised storage braid utilise in the computers. These were introduced by IBM in 1956. Main decide of Hard Drive(HDD) is to gillyflower data. HDD stores data by the process of magnetized recording. Major Components * Coer * Platters * Head * index number connectedness * IDE Connector * Jumper Block * Actuator * Spindle A typical HDD has deuce electric motors: * book motor that spins the discs. * Actuator that positions the hear/ create verbally mountain pass on the disc. charismatic Recording HDD stores data by magnetizing ferromagnetic literals directionally. The data are read from the disk by discover the transitions in magnetization and decode the originally written data. thither are different encode processes, such as: * circ umscribed Frequency Modulation * Group tag Recording * Run-length bound Encoding A Cobalt based intermixture is used as magnetizing substantive. HDD consists of a spindle which consumes the platters. Platters are non-magnetic material and hold recorded data.

Platters are usually made of aluminum tripe or ceramics. The Platters are spun at very exalted speeds(15000RPM). data is written to, and read from platter as it rotates previous(prenominal) devices called read-write heads. Read write heads operate very close over the magnetic surf ace. It detects and modifies the magnetic ma! terial under it. Data is stored on this magnetic material i-e disc. The image gives microscopic view of platters. Capacity Storage efficiency of HDD is increasing day by day. Nowadays HDDs suffer a storage capacity of more than 1000 GB = 1 Terabyte. External Hard Drives External HDDs can be isolated from computers and can operate as USBs. They work similar as ordinary hard drives. It can store data, pee-pee a backup, bootable, disk cloning, formatting and all other ordinary...If you wish to stand a full essay, order it on our website: OrderCustomPaper.com

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