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{{short description|Discontinued magnetic tape data storage format}}
{{
'''Advanced Intelligent Tape''' ('''AIT''') is a discontinued high-speed, high-capacity [[magnetic tape data storage]] format developed and controlled by [[Sony]]. It was introduced in 1996 to utilise Advanced Metal Evaporated (AME) technology. It competed mainly against the [[Digital Linear Tape|DLT]], [[Linear Tape-Open|LTO]], [[Digital Data Storage|DAT/DDS]], and [[VXA]] formats. AIT uses 8mm tape in a cassette similar to [[Video8]]. '''Super AIT''' ('''SAIT''') is a higher capacity variant using wider half inch (1/2") tape in a larger, single-spool cartridge. Both AIT and SAIT use the [[helical scan]] method of reading and writing to the tape.
[[Image:AIT tapes.jpg|thumb|250px|AIT tapes.]]
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== Form factors ==
AIT technology was available in two form factors.
* AIT – 8 mm, dual reel cartridge, similar to Sony's 8 mm videotape products and Exabyte's 8 mm data tape products.
* SAIT – 1/2", single reel cartridge, similar to [[Digital Linear Tape|DLT]] and [[Linear Tape-Open|LTO]].
In March 2010, Sony announced the discontinuation of the AIT product line, and renewed collaboration with [[Hewlett-Packard]] on further development of the [[
== Compatibility ==
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|
|-
| RPM
|Tape Length (m)▼
|
| 4800
| 170, 230▼
|
| 6400
| 170, 230▼
|
|-
|Tape
| 98
▲| 170, 230
|▼
| 186
▲| 170, 230
| 186
▲|-
| 6.6
| 7.0, 5.3
| 6.6
| 7.0, 5.3
| 6.6
|}
=== AIT-1 ===
* Original specification's data capacity
* Extended length tape, introduced in 1999 gave additional capacity, 35 GB.
* Speed increased to 4 MB/s in 2001.
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|-
|Tape Thickness (
| 5.3
|
| 4.8
| 4.8
|
|-
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=== AIT-5 ===
* Available September 27, 2006<ref>{{cite press release |url=http://www.sony-europe.com/res/attachment/file/79/1159199085479.pdf |title=Sony announces availability of its fifth generation tape drive and media in celebrating 10 years of AIT |publisher=Sony |format=PDF |date=September 27, 2006 |accessdate=2007-10-15| archiveurl= https://web.archive.org/web/20070928123755/http://www.sony-europe.com/res/attachment/file/79/1159199085479.pdf| archivedate= 28 September 2007
* Announced July 2006, hardware and media expected "in the fall."
* Doubled capacity (via halved tracked pitch to 2.2 μm), maintained transfer speed.
* Backwards compatible with AIT-3, AIT-3Ex, AIT-4
* New tape formulation, AME-3, which uses finer Cobalt particles resulting in SNR gain of 1
* A switch to [[Giant magnetoresistance|GMR head]] technology (Flux Guide GMR).
== SAIT generations ==
[[File:
{| class="wikitable" style="margin-left: 1em;"
! Generation
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|
|-
|Tape Thickness (
|
| 8.6
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| doi =
| accessdate = 2007-01-30}}</ref>
== Notes ==
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== Technical features ==
=== AME ===
=== MIC ===
Memory
=== R-MIC ===
| |||