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Video 1.06

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Submitted By larrycnorwood
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Video 1.06

• Hard Drives • Hard Drive Interface • P ATA (Parallel ATA) • Serial ATA • Floppy Drives • Power Supply Connections • CDs • DVDs • SCSI Devices • IEEE1394 • Solid State Removable • Tape Drives

Video 1.06 Definitions

Hard Drives-device used for storing and retrieving digital information; hard drive size limit to 157GB Hard drive interfaces- refers hard drives, CD drives, DVD drives and tape drives P ATA- is an interface standard for the connection of storage devices; cable has two connectors, master and slaves Serial ATA-interface that connects host bus adapters to mass storage device; smaller and faster and more expensive Floppy Drives- older technology replaced by flash drives and CD drives Power Supply Connections- connect drives, CDs and DVDs CDs- art read by laser, some are read only, recordable and rewriteable DVDs- shorter wavelength laser that increases capacity SCSI Devices-set of standards for physically connecting and transferring data between computers and peripheral devices; three standards: regular, fast and ultra IEEE 1394- standard for high-speed communications and isochronous real-time data transfer; firewall and i.LINK Solid State Removable- compact flash used in PC card slot Tape Drives-must read from beginning to end

Video 1.08

• SRAM vs DRAM • DRAM • Dual Channeling • RIMM • Memory Error

Video 1.08

SRAM vs DRAM- SRAM doesn’t need to refresh periodically; DRAM needs to refresh every few milliseconds
DRAM- stores each bit of data in a separate capacitor within an integrated circuit
Dual Channeling- computer with 3 GB RAM
RIMM-computer memory; two notches in the center of the module
Memory Errors- check integrity of each byte; cannot determine which byte is bad

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