Holds media that needs to be accessed
 Holds files that the system needs to
operate
 Holds data that needs to be saved
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

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Rapidly becoming
obsolete but still found in
legacy applications
Most recent configuration
accepted a removable 3
1/2" disk with a storage
capacity of 1.44 MB
Traditionally assigned drive
letters A: and B:
Power supplied through a
4-pin Mini power
Connector (Molex)
Data transferred to
motherboard through a 34pin keyed ribbon cable

http://www.youtube.com/watch?v=cxhU0wXs
KEM
What kind of power connector does a
floppy drive use?
 A. AT Power Connector
 B. ATX Power Connector
 C. Molex Power Connector
 D.Mini-molex power Connector






Typically mounted inside
the computer
Provides permanent
storage and quick access
Stores information either on
small disks called platters or
in integrated memory chips
Read and write operations
are managed by the
controller
Data is transferred to and
from the motherboard by
the host adapter

http://www.youtube.com/watch?v=QaxN2qN
qVfg
Where does the HDD store information:
 A.) The Motherboard

B.) Small disks called platters
 C.)Host Adapter
 D.)None of the Above

A magnetic disk's medium contains iron
particles, which can be
polarized—given a magnetic charge—in one
of two directions.
1.
Each particle's direction represents a 1 (on) or 0
(off), representing each bit of data that the CPU
can recognize.
2.
A disk drive uses read/write heads containing
electromagnets to create magnetic charges on
the medium
Primary Magnetic Storage Devices:
 Diskettes (floppy disks)
 Hard disks
 High-capacity floppy disks
 Disk cartridges
 Magnetic tape
Cost Less
 Higher number of writes/erase cycles
 Higher write speeds

Uses memory chips to store data
 Contains no moving parts
 Quieter
 Resistant to shock and vibration
 Faster read/write speeds
 Expensive
 Requires constant power source

Faster Startup
 Higher read speeds
 Lower power consumption
 Less heat generated
 Less risk of failure


http://www.youtube.com/watch?v=yYb
Wx74Vgmo
Which of the following is not true when
discussing the advantages of a solid
state drive over a magnetic drive?
 A.) Faster Startup
 B.)Faster Radom Access for reading
 C.) Quieter
 D.)Unlimited Read and Writes
Data is recorded to this type of media by
stamping irregularities onto the surface of the
disc, or "burned" into it using a laser, in a spiral
pattern that runs from the inside to the outside
of the disk.
Compact Discs (CD),
2. Digital Versatile Discs (DVD)
3. Blu-Ray discs
1.
CD
Used for digital data storage
 formats include read-only (CD-ROM),
write-once audio and data storage (CDR), and rewritable media (CD-RW).
Storage capacity ranges from 650900MB.
DVD discs can be single or double sided.
 each DVD side may contain a second
invisible "layer" to increase the disc's
storage capacity.
 4.7GB capacity(single-sided/single-layer)
 8.5GB capacity (single-sided/doublelayer)
 9.4GB capacity (double-sided/singlelayer)
 17.1GB capacity (double-sided/doublelayer)





High-density optical disc created with a
blue laser
Used to store HD video and large
amounts of data
25-50GB storage capacity single-layer
50-100GB storage capacity dual-layer
Which has the greatest storage capacity?
 A.)CD
 B.)CD-RW
 C.)DVD
 D.)Blu-Ray

Tape drive
›
›
›
›
›
Can be installed internally or externally
Uses either digital or analog magnetic tape
100GB capacity / 200GB compressed
Slower than most medium
Primarily used for archives
Solid state
› Thumb Drive: Also known as a jump drive or flash
drive, a convenient means for data transfer quickly
replacing the traditional floppy disk drive
› SD cards: small memory cards used in electronic
devices
Where can you find a Standard SD
memory card?
 A.A cellular/smart phone
 B.A digital camera
 C.A PDA
 D. All of the options provided are correct


External hard drives store your valuable
data and add a considerable level of
safety and security.
Provides portable storage with popular
interfaces of USB and FireWire.
 Some are available with an eSATA or
SCSI interface
 some still require additional power
sources.

Hot swappable devices can be added or removed
from your computer without having to reboot.
Examples:
 USB Devices
 Keyboard
 Mouse
 Thumb Drives
 Some SATA Hard Drives
Devices that require rebooting or need to have drivers
installed to operate are considered non-hot swappable
 Examples:
 internal hard drive
What do you call the technology that
allows you to connect and disconnect a
device to a computer while the
computer is running?
 A. Hot-swappable
 B. Power-charged
 C. Plug and play
 D. Compact


http://www.youtube.com/watch?v=Wj2J5a6P
u5w&feature=related




http://warrior.eccc.edu/ComptiaAPlus/Lists/Compt
ia%20A%20Essentials%202009%20Resources%20by%
20ObjectiveMo/Attachments/4/10-BCD.pdf
https://sites.google.com/a/jamieknowsit.com/inde
x/comptia/220-701/storage-devices-and-backupmedia
https://sites.google.com/a/jamieknowsit.com/inde
x/comptia/220-701/storage-devices-and-backupmedia
http://www.youtube.com