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Unit 8 Storage Devices Purposes Need non-volatile source Keep for later use Transport to another place/computer Retain for archive Types of Storage Devices Floppy Disk Hard Disk CD-ROM Back up Devices Floppy Disk Floppy Drive Types 5.25” floppy disk (old) 3.5” floppy disk (now)

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unit 8
Unit 8
  • Storage Devices
purposes
Purposes
  • Need non-volatile source
  • Keep for later use
  • Transport to another place/computer
  • Retain for archive
types of storage devices
Types of Storage Devices
  • Floppy Disk
  • Hard Disk
  • CD-ROM
  • Back up Devices
floppy drive types
Floppy Drive Types
  • 5.25” floppy disk (old)
  • 3.5” floppy disk (now)
floppy drive equipment
Floppy Drive Equipment
  • Disk drive
  • Diskettes
traditional uses
Traditional Uses
  • Install New Programs (changing now)
  • Transfer data
  • Increase Hard Disk Space
  • Back Up Data
evolving uses
Evolving Uses
  • Install small programs only
  • Transfer small amount of data
  • (Other equipment replacing floppies!)
floppies specifications
Floppies Specifications
  • Capacity
    • Double-Density (DS/DD)
    • High-Density (HD)
  • Pre-formatted
protecting a floppy
Protecting a Floppy
  • Write protection
  • Store in container
  • Protect from environment
note regarding terms
Note Regarding Terms
  • Disk
  • Drive
  • Used interchangeably!
hard disk equipment
Hard Disk Equipment
  • Hard disk enclosed in protective shell
  • Software to format
  • No external access!
uses of hard drive
Uses of Hard Drive
  • Store files
    • Program Files
    • Data Files
storing process
Storing Process
  • Computer: controller
  • User
    • Create folders by topic
    • (Subdirectory)
hard drive specifications
Hard Drive Specifications
  • Capacity (Mb, Gb)
  • Average Access Time (ms)
connection types
Connection Types
  • IDE (older)
  • EIDE (newer)
  • SCSI (high end)
purposes of disk cache
Purposes of Disk Cache
  • Speeds up computer
  • Stores recently used data
  • Updated constantly
create more disk space
Create More Disk Space
  • Archive unneeded information
  • Delete files
  • Compress data
hard drive maintenance
Hard Drive Maintenance
  • Optimize...
  • Virus...
  • Back Up Data...
optimize a hard drive
Optimize a Hard Drive
  • Defragment a drive
  • Scan disk to repair a drive
ways to get a virus
Ways to Get a Virus
  • Shared floppy disk
  • Modem/Internet
  • Shareware programs
  • Protect with: Anti-Virus Program
back up data
Back Up Data
  • Back up data files
  • Back up frequently
removable hard drives
Removable Hard Drives
  • (Back up option)
  • Archive Data
  • Protect Data
  • Transfer Data
cd rom equipment
CD-ROM Equipment
  • CD-ROM Drive
  • Software
  • CD-ROM Disc
uses for cds
Uses for CDs
  • Install software
  • Run program from CD
  • Any multimedia application
  • Play Music CDs
programs on cds
Children

Education

Games

Reference

General Interest

Time-Sensitive information

Programs on CDs
factors in cd roms
Factors in CD-ROMs
  • Speed
  • Average Access Time
  • Multisession (read info stored over other info!)
using the cd rom
Using the CD-ROM
  • Insert in tray
  • Handle from edges
  • Use jewel case
new cd rom items
New CD-ROM Items
  • Recordable CDs
  • DVD-ROM
traditional tape drive
Traditional Tape Drive
  • Drive unit
  • Software
  • Cartridges ($$)
tape drive
Tape Drive
  • Tape cartridges
  • Applications
    • Back up data
    • Archive data
    • Transfer data
other devices
Other Devices
  • Traditional
    • QIC Drive
    • Travan Drive
    • DAT Drive
  • New
    • Zip Drive
backup tips
Backup Tips
  • Schedule Backups -- like brushing your teeth
  • Data Compression
  • Record date of purchase
types of backups
Types of Backups
  • Full
  • Incremental