ENGRI111_21_magnetics

ENGRI111_21_magnetics - ENGRI111 Information Storage:...

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Unformatted text preview: ENGRI111 Information Storage: Magnetics Background Background Electronics revolution has placed unprecedented demands on information storage most ambitious programs like the Genome project rely on information storage The faster we generate data the more storage is required Higher storage density critical Examples Examples Cassette tapes Videotapes Hard drives CDs Memory Sticks MP3s Requirements Fidelity Durability Reliability Storage density Cost of Computer Memory/Gbyte Cost of Computer Memory/Gbyte Hard Disk Real Estate: Hard Disk Real Estate: Size of 1 bit (x1000) Size of 1 bit (x1000) www.aacg.bham.ac.uk/.../magnetic_recording.htm Are there any limits? Any limits in the physics/properties of the materials that will slow down the growth of magnetic storage? New approaches to data storage Magnetic storage has new rivals flush memory optical memory History History Compass invented in China two millenia ago...
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ENGRI111_21_magnetics - ENGRI111 Information Storage:...

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