Dell Inspiron 20 (3048, Early 2014) - Manual (Page 31)

Storage Device
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Memory Cards
Memory cards, also referred to as media or flash cards, use flash memory
to store data. They are re-writeable, fast, and retain data even when
power supply is cut off. They are commonly used in devices such as digital
cameras, mobile phones, media players, gaming consoles, and so on. Your
computer may have a media-card reader to read and write to these cards.
Some common types of memory cards are:
Secure Digital (SD)/Secure Digital High Capacity (SDHC)
Secure Digital Extended Capacity (SDXC) [card with
Ultra High Speed (UHS)]
Secure Digital miniSD
Multimedia Card (MMC)
MultiMedia Card plus (MMC+)
Multi Media Card (MMC) Mobile
RS MMC