2. Flash memory
O is a non-volatile computer storage chip that can be electrically erased
and reprogrammed. It was developed from EEPROM (electrically
erasable programmable read-only memory) and must be erased in fairly
large blocks before these can be rewritten with new data. The high
density NAND type must also be programmed and read in (smaller)
blocks, or pages, while the NOR type allows a single machine word
(byte) to be written or read independently.
3. Secure Digital (SD)
O is a non-volatile memory card format
developed by the SD Card Association
(SDA) for use in portable devices. The SD
technology is used by more than 400
brands across dozens of product
categories and more than 8,000 models.
4. TransFlash o Micro SD
O MicroSD or TransFlash cards correspond
to a format of flash memory card smaller
than MiniSD, developed by SanDisk,
adopted by the SD Card Association [1]
under the name "microSD" in July 2005. It
measures only 15 × 11 × 1 mm, which
gives an area of 165 mm.
5. Compact Flash (CF)
O is a mass storage device format used in
portable electronic devices. Most
CompactFlash devices contain flash
memory in a standardized enclosure. The
format was first specified and produced by
SanDisk in 1994.[4] The physical format is
now used for a variety of devices.
6. Multimedia Card (MMC)
O The MultiMediaCard (MMC) is a flash
memory memory card standard. Unveiled
in 1997 by SanDisk and Siemens AG, it is
based on Toshiba's NAND-based flash
memory, and is therefore much smaller
than earlier systems based on Intel NOR-
based memory such as CompactFlash.
7. Smart Media
O is a flash memory card standard owned
by Toshiba, with capacities ranging from 2
MB to 128 MB. SmartMedia memory
cards are no longer manufactured.
8. Mini MMC
O A memory card or flash card is an
electronic flash memory data storage
device used for storing digital information.
They are commonly used in many
electronic devices, including digital
cameras, mobile phones, laptop
computers, MP3 players, and video game
consoles
9. XD
O xD-Picture Card is a flash memory card
format, used mainly in older digital
cameras. xD stands for Extreme Digital.[1]
O xD cards are available in capacities of 16
MiB up to 2 GiB.
10. Memory Pen (USB Mass
Storage
O data storage device that includes flash
memory with an integrated Universal
Serial Bus (USB) interface. USB flash
drives are typically removable and
rewritable, and physically much smaller
than a floppy disk. Most weigh less than
30 g
11. Inch Floppy Disk
O is a disk storage medium composed of a
disk of thin and flexible magnetic storage
medium, sealed in a rectangular plastic
carrier lined with fabric that removes dust
particles. They are read and written by a
floppy disk drive
12. Zip Disk
O is a medium-capacity removable disk
storage system that was introduced by
Iomega in late 1994. Originally, Zip disks
launched with capacities of 100 MB, but
later versions increased this to first 250
MB and then 750 MB.
