View source for TU80 Tape Transport

{{Infobox Tape drive
| name = TU80
| image = tu80.jpg
| imgwidth = 200px
| caption = TU80 drive
| manufacturer = [[Digital Equipment Corporation|DEC]] (vendor)<br>[[Control Data Corporation|CDC]] (contractor)
| controller = [[TU80K]] (or other Pertec controllers certified for the TU80)
| interface = Pertec tape interface
| media = standard half-inch tape<br>10-1/2" reel, 2,400 ft. maximum
| tape density = 1600 bpi
| tape speed = 100 inch/sec (high-speed streaming)<br>25 inch/sec (low-speed streaming or start/stop)
| capacity = 40 Mbytes (maximum)
| transfer rate = 160 Kbyte/s (high-speed streaming)<br>40 Kbyte/s (other modes)
| rewind time = 150 secs (nominal)
| power = 300 VA (standby, loaded)<br>550 VA (max, start/stop)
| size = 41.5"H x 21.5"W x 30"D
| weight = 280 lbs
| year introduced = 1983
}}
The '''TU80 Tape Transport''' was a manually-loaded mid-range nine-track, streaming, [[ANSI]]-standard [[magnetic tape drive]] sold by [[DEC]] for the [[PDP-11]] and [[VAX]] computers. Its recording density of 1600 bpi used [[Phase Encoding|PE]] [[encoding]], and it used the [[Pertec tape interface]].

It was manufactured for DEC by Computer Peripherals, Inc. (CPI) of Morristown, Pennsylvania. CPI was a subsidiary of [[Control Data Corporation]] (CDC), which, besides being a computer manufacturer themselves, also provided [[peripheral]]s and storage components for other vendors.

The TU80 appears to have been controlled by a [[Motorola]] [[MC6802|6802]] processor, a variant of the [[MC6800|6800]] with 128 bytes of internal [[Random Access Memory|RAM]] and an internal [[clock]] oscillator. There were also five [[6821 PIA|6821]] [[Parallel Interface Adapter]] [[integrated circuit|chips]] for interfacing to the various parts of the [[bus]] and [[computer operator|operator]] panel etc. The [[firmware]] was stored in an 8KB [[read-only memory|ROM]] chip.

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==External links==

* [http://www.bitsavers.org/pdf/dec/magtape/tu80/ TU80] - documentation at [[Bitsavers]]
** [http://www.bitsavers.org/pdf/dec/magtape/tu80/EK-OTU80-UG-002_Oct83.pdf TU80 Subsystem User Guide] (EK-0TU80-UG-002)
** [http://www.bitsavers.org/pdf/dec/magtape/tu80/EK-0TU80-SV.004_Jun84.pdf TU80 Pathfinder] (EK-0TU80-SV-004)
** [http://www.bitsavers.org/pdf/dec/magtape/tu80/EK-0TU80-PS-003_TU80_Pocket_Service_Guide_198706.pdf TU80 Magnetic Tape Subsystem Pocket Service Guide] (EK-0TU80-PS-003)
** [http://www.bitsavers.org/pdf/dec/magtape/tu80/EK-0TU80-IP-002.pdf TU80 Tape Drive Illustrated Parts Breakdown] (EK-0TU80-IP-002.pdf)

[[Category: DEC Tape Drives]]