DATA

STORAGE

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Floppy DiskA 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).

Floppy disks, initially as 8-inch (200 mm) media and later in 5.25-inch (133 mm) and 3.5-inch (89 mm) sizes, were a ubiquitous form of data storage and exchange from the mid-1970s well into the first decade of the 21st century

Zip DiskThe Zip drive 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.

The format became the most popular of the super-floppy type products which filled a niche in the late 1990s portable storage market

Tape DriveA 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.

A tape drive provides sequential access storage, unlike a disk drive, which provides random access storage. A disk drive can move to any position on the disk in a few milliseconds, but a tape drive must physically wind tape between reels to read any one particular piece of data. As a result, tape drives have very slow average seek times. For sequential access once the tape is positioned, however, tape drives can stream data very fast. For example, as of 2010[update] Linear Tape-Open (LTO) supported continuous data transfer rates of up to 140 MB/s, comparable to hard disk drives.

Mini CD

Mini CDs, or “pocket CDs” are CDs with a smaller diameter and one third the capacity

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.

DVD-RW

A DVD-RW disc is a rewritable optical disc with equal storage capacity to a DVD-R, typically 4.7 GB. The format was developed by Pioneer in November 1999 and has been approved by the DVD Forum. The smaller Mini DVD-RW holds 1.46 GB, with a diameter of 8 cm

Mini DVD

MiniDVD (Mini DVD or miniDVD) is a DVD disc having 8 cm in diameter.

The 8 cm optical disc format was originally used for music CD singles, hence the commonly used names CD single and miniCD. Similarly, the manufactured 8 cm DVDs were originally used for music videos and as such became known as DVD single.

XD

xD-Picture Card is a flash memory card format, used mainly in older digital cameras. xD stands for Extreme Digital.[1]

xD cards are available in capacities of 16 MiB up to 2 GiB.

Flash MemoriesFlash memory 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.

SD

Secure Digital (SD) es un formato de tarjeta de memoria inventado por Panasonic. Se utiliza en dispositivos portátiles tales como cámaras fotográficas digitales, PDA, teléfonos móviles, computadoras portátiles e incluso videoconsolas (tanto de sobremesa como portátiles), entre muchos otros.

Estas tarjetas tienen unas dimensiones de 32 mm x 24 mm x 2,1 mm. Existen dos tipos: unos que funcionan a velocidades normales, y otros de alta velocidad que tienen tasas de transferencia de datos más altas. Algunas cámaras fotográficas digitales requieren tarjetas de alta velocidad para poder grabar vídeo con fluidez o para capturar múltiples fotografías en una sucesión rápida.

Memory pen

A USB flash drive is a 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.[1] As of January 2012 drives of 256GB were available, 512GB and 1 terabytes (TB) drives were in planning,[2] [3] and storage capacities as large as 2 terabytes are planned,[4] with steady improvements in size and price per capacity expected. Some allow up to 100,000 write/erase cycles (depending on the exact type of memory chip used)[5] and 10 years shelf storage time.[6][7]

Flash Card

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. They are small, re-recordable, and able to retain data without power.

Smart Media

SmartMedia 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.

Compact Flash

CompactFlash (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.[4] The physical format is now used for a variety of devices

Multimedia Card

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. 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. It has been more or less superseded by SD (Secure Digital) card, but still sees significant use because MMCs can be used in most devices that support SD cards.

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