Microsoft Office Tutorials and References
In Depth Information
COM 17
STORAGE DEVICES
Flash memory cards are solid-state media, which means they consist entirely of electronics
(chips, wires, etc.) and contain no moving parts. Common types of flash memory include
CompactFlash (CF), Secure Digital (SD), xD Picture Card, and Memory Stick (Figure 24).
A USB flash drive (Figure 25), sometimes called a pen drive or thumb drive, is a flash memory
storage device that plugs into a USB port on a computer or mobile device. USB flash drives are the
portable storage media of choice among users today, making the floppy disk nearly obsolete, because
they are small, lightweight, and have such large storage capacities. Capacities typically range from
32 MB to 64 GB.
VARIOUS FLASH MEMORY CARDS
Media Name
FIGURE 24
A variety of flash
memory cards.
Storage Capacity
Use
CompactFlash
64 MB to 16 GB
Digital cameras, PDAs, smart phones, photo printers, portable
media players, notebook computers, desktop computers
Secure Digital
64 MB to 4 GB
Digital cameras, digital video cameras, PDAs, smart phones,
photo printers, portable media players
xD Picture Card
64 MB to 2 GB
Digital cameras, photo printers
Memory Stick
256 MB to 4 GB
Digital cameras, digital video cameras, PDAs, photo printers,
smart phones, handheld game consoles, notebook
computers
Memory Stick
128 MB to 4 GB
Digital cameras, smart phones, handheld game consoles
PRO Duo
A USB
FIGURE 25
flash drive.
 
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