Optical Discs; Memory Cards - Dell Inspiron 13z Manual

Optical Discs

Some examples of optical discs are:
• Blu-ray Disc – Blu-ray Disc (BD) was designed to supersede the DVD
format. The standard physical medium is a 12 cm plastic optical disc,
the same size as DVDs and CDs. A Blu-ray Discs stores 25 GB (single
layer) or 50 GB (dual layer).
• DVD – A Digital Versatile Disc (DVD) stores data up to 4.7 GB (single
layer) or 8.5 GB (dual layer).
• CD – A Compact Disc (CD) stores data up to 800 MB.

Memory Cards

Memory cards, also referred to as flash cards, use flash memory to store
digital information. They are re-writeable, fast, and retain data even when
power supply is cut off. Memory cards are commonly used in devices
such as digital cameras, mobile phones, media players, gaming consoles,
and so on.
Some common types of memory cards are:
Secure Digital (SD)/Secure Digital High
Capacity (SDHC)
Memory Stick (MS)/Memory Stick Pro
(MS Pro)
Extreme Digital (xD)
Multimedia Card (MMC)
Secure Digital Extended Capacity
(SDXC) [card with Ultra High Speed
(UHS)]
38 Storage
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