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A tape drive, also known as a streamer, is a data storage device that reads and writes data stored on a magnetic tape. It is typically used for archival storage of data stored on hard drives. Tape media generally has a favorable unit cost and long archival stability.

Instead of allowing random-access to data as hard disk drives do, tape drives only allow for sequential-access of data. A hard disk drive can move its read/write heads to any random part of the disk platters in a very short amount of time, but a tape drive must spend a considerable amount of time winding tape between reels to read any one particular piece of data. As a result, tape drives have very slow average seek times. Despite the slow seek time, tapes drives can stream data to tape very quickly. For example, modern LTO drives can reach continuous data transfer rates of up to 80 MB/s, which is as fast as most 10,000 rpm hard disks.
An external QIC tape drive.
An external QIC tape drive.

Tape drives can be connected to a computer with SCSI (most common), Fibre Channel, FICON, ESCON, parallel port, IDE, USB, FireWire or other interfaces. Tape drives can range in capacity from a few megabytes to upwards of 800 GB. Tape drive storage is usually referred to with the assumption of 2:1 compression ratio, so a tape drive might be known as 80/160, meaning that the standard storage capacity is 80 whilst the compressed storage capacity can be up to 160. The raw storage capacity is known as the native capacity.

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Tape Drives

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Dell 16X DVD+/-RW ROM Drive SATA - Kit

The Dell DVD?RW Drive brings all the advantages of a CD-RW, a DVD?RW, a DVD-ROM, and a CD-ROM to a single drive. It offers up to 16X DVD read speeds.This drive ...

Dell Business e&A
£38.78

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Tape Drives

Dell 16X DVD+/-RW ROM Drive SATA - Kit

HP DVD555S-H02 Slim DVDRW DL DVD Writer USB2.0 Lightscribe

-3 Target SATA Standalone CD DVD Duplicator Disc...

SanDisk SDCZ7-4096-E11 Cruzer Titanium U3 USB...

SanDisk SDCZ21-004G-E75 Cruzer Professional USB...

Dell HD767 Dell 5210/5310 U&R High Black Black High Cap Hd767 20K

SanDisk SDCZ22-002G-E75 Sandisk Cruzer Enterprise USB 2.0 Flash Drive - 2GB

LaCie d2 DVDÂ±RW 22x with LightScribe and FireWire - 301484EK

NEC NEFAX525 NEFAX 525 BLACK IMAGING UN

LG 22X DVD+RW Bare Black - Sata

Edge10 EdgeDupe 31782 1- 3 Multi-task Duplicator

Samsung SE-T084M/RS

Samsung EXTERNAL DVDRW BLACK

B&Q Bigso Sweden CD/DVD Box Graphite

900 Neo Dvd Cd Discs Plastic Sleeve Cover 120 Micron