Video 1.06

In: Computers and Technology

Submitted By larrycnorwood
Words 270
Pages 2
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...