This document summarizes several types of data storage devices including zip disks, floppy disks, mini DVDs, CD-RWs, mini CDs, DVD-RWs, tape drives, compact flash, mini MMC, secure digital cards, multimedia cards, xD cards, and USB flash drives. It provides details on the storage capacity and features of each type of storage medium.

1. DATA STORAGE DEVICES
Flor Estefanía Hernández Gómez

2. ZIP DISK
 A zip disk is a computer hardware device that
stores data. A zip disk drive is somewhat like floppy
disk drive, only that the size of disks inserted into
the devices are different. Where a normal floppy
disk can hold about 1.44 megabytes of data, a zip
disk can hold around 100 megabytes of data

3. 3.5~INCH FLOPPY DISK
A floppy disk 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 (FDD).

4. MINI DVD
 MiniDVD is known also as "3 inch DVD", referring
to its approximate diameter in inches.
 A MiniDVD can be played back in most Blu Ray and
DVD players that are tray loaded. The trays on
players and DVD drives have an inner ring where
the 8 cm disc is centered for loading in the player.
Most slot loading players cannot use this format;
there are exceptions, however, such as the
PlayStation 3 and the Wii, but not the Wii U. Both
officially support 8 cm discs

5. CD~RW
 A CD-RW (Compact Disc-ReWritable) is a rewritable optical disc. It
was introduced in 1997, and was known as "CD-Writable" during
development. It was preceded by the CD-MO, which was never
commercially released.
 CD-RW disc require a more sensitive laser optics. Also, CD-RWs
cannot be read in some CD-ROM drives built prior to 1997. CD-ROM
drives will bear a "MultiRead" certification to show compatibility.

6. MINI CD
 Mini CDs, or “pocket CDs” are CDs with a smaller
diameter and one third the capacity

7. DVD~RW
 A DVD-RW (Rewritable Less) is a rewritable DVD
which can record and erase the information several
times. The standard capacity is 4.7 GB.
 It was created by Pioneer in November 1999 and is
opposed to format DVD + RW, further supported by
Panasonic, Toshiba, Hitachi, NEC, Samsung, Sharp
, Apple Computer and the DVD Forum.

8. TAPE DRIVE
 A tape drive is a data storage device that reads and
performs digital recording, writes data on a
magnetic tape. Magnetic tape data storage is
typically used for offline, archival data storage. Tape
media generally has a favorable unit cost and long
archival stability.

9. Flash memories

10. COMPACT FLASH (CF)
 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.
 The physical format is now used for a variety of
devices

11. MINI MMC
 is a storage device that retains information that has
been stored correctly even with the loss of energy,
that is, memory is a memory card volátil. is a
memory chip that holds its content without power

12. FLASH MEMORIES
 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.

13. SECURE DIGITAL (SD)
 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.

14. TRANSFLASH O MICRO SD
 is the most common used memory card in mobile
phones and the SD Card Association’s objective is
to make microSD a de facto memory card standard
for all mobile phones. All TransFlash and microSD
cards always come with a SD Memory Card
adaptor, which makes them compatible to all SD
Memory Card slots. The microSD is about 10% in
volume compared to SD Memory Card and about
30% compared to miniSD

15. SMART MEDIA (SM)
 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.

16. MULTIMEDIA CARD (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. MMC is about the size of a postage
stamp: 24 mm × 32 mm × 1.4 mm. MMC originally
used a 1-bit serial interface, but newer versions of
the specification allow transfers of 4 or 8 bits at a
time

17. XD
 is a flash memory card format, used mainly in older
digital cameras. xD stands for Extreme Digital.
 xD cards are available in capacities of 16 MiB up to
2 GiB

18. MEMORY PEN (USB MASS STORAGE)
is an industry standard developed in the mid-1990s
that defines the cables, connectors and
communications protocols used in a bus for
connection, communication and power supply
between computers and electronic devices