374:
57:
138:
634:, was made possible by making the cartridges physically longer to accommodate larger spools. In many cases a standard QIC drive and backup package can use the extended length to store additional data, however in some cases an attempt to reformat a QIC-EX cartridge fails since the time taken to traverse the extra length triggers a timeout in the drive or controlling software intended to detect a broken tape.
53:
data written in the opposite direction to its neighbor. Since its introduction, it has been widely used, and many variations exist. There is a QIC trade association that publishes QIC standards which include interfaces and logical formats. To a very large extent it was the efficiency and openness of this organization which encouraged hardware and software developers to use this type of drive and media.
130:
89:
end has a small beginning or end of tape hole which is detected by an optical sensor, and an "early warning" hole further from each end. If a defective drive—for example with fluff in a sensor—winds the tape past the BOT or EOT marker, the tape will detach from the spool and the cartridge will be unusable unless it is reattached.
52:
inch (6.35 mm) wide and anywhere from 300 to 1,500 feet (91 to 457 m) long. Data is written linearly along the length of the tape in one track (mostly on pre-1980 equipment), or written "serpentine", one track at a time, the drive reversing direction at the end of the tape, and each track's
88:
The tape in a QIC cartridge is not physically attached to the reels and is never completely unwound. This is again different from other cassettes or cartridges, which generally have some form of clip anchoring on at least one end of the tape. To ensure that the tape is never completely unwound, each
105:
However, because the tape is belt-driven, seeking back and forth can eventually cause the tape to become unevenly tensioned. It is therefore necessary to periodically retension the cartridge. This is accomplished by winding the tape from beginning to end and back in one operation, allowing the belt
41:
in 1972, with derivatives still in use as of 2016. QIC comes in a rugged enclosed package of aluminum and plastic that holds two tape reels driven by a single belt in direct contact with the tape. The tape was originally
607:'s name for its line of high-capacity QIC data cartridge drives. As of 2005, Tandberg was the only manufacturer of SLR/QIC drives in the world. The largest SLR drive can hold 70 GB of data (140 GB compressed).
73:. Since the belt is in contact with the tape, this ensures both that the tape moves at uniform speed, and that neutral tension is maintained at all times. This is in contrast to
1081:
1513:
113:
When the cartridge gets old, the belt may not provide enough friction to turn the takeup spool smoothly. When this happens, the tape will need to be replaced.
251:
3M DC600HC, a preformatted tape with 16 tracks on 600 foot DC600A and software-based EOT/BOT detection. HP used these in the HP914x type of cartridge drives.
69:
The QIC cartridge is distinguished from other types of tape cartridges by containing an endless drive belt which is moved at a uniform speed by a motorised
1074:
619:
that uses a wider .315 inch (8 mm) tape and increases the recording density. QIC-Wide drives are backwards compatible with QIC tapes.
971:
1508:
1067:
906:
853:
761:
701:
1388:
116:
In some cases a cartridge must be formatted before use. The capability to do this is in the drive rather than the host computer.
102:
inch (2.54 mm) thick, and the robust plastic cover can withstand abuse and impacts that would damage other tape formats.
647:
358:
184:, has 300 feet of tape and holds 200 kilobytes. Various QIC DC recording formats have appeared over the years, including:
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34:
20:
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600:
595:
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1213:
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1189:
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70:
1341:
659:
350:
81:, where the tape is moved past the head by a capstan and pinch wheel, but the takeup reel is driven by a
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631:
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1177:
362:
78:
1324:
967:
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757:
697:
393:
373:
1201:
1159:
180:(DC) format with two internal belt-driven reels and a metal base. The original product, the
1171:
668:
922:
Catherine D. Miller (August 1989). "Beyond Floppy Disks: A Look at Backup
Alternatives".
1027:
56:
1002:
795:
M. David Stone (October 16, 1990). "QIC 150 Tape Drives: The Rising Star for Backup".
1502:
1353:
1347:
1271:
1059:
957:
604:
74:
137:
1165:
354:
197:: nine-track, 45 MB or 60 MB on a 450 or 600 ft DC600A cartridge, respectively
1153:
737:
717:
92:
The design of the QIC tape cartridge is very robust: the aluminium baseplate is
82:
876:
815:
307:
1207:
1183:
1147:
1112:
780:
M. David Stone (October 16, 1990). "Backing Up: Guide to Media
Choices".
1318:
1124:
1052:
829:
Oliver Rist (April 14, 1992). "Backup
Alternatives: What's Out There".
129:
400:, uses a longer and wider (8 mm) tape to give higher capacities.
1230:
388:
382:
191:: a four-track format giving 20 MB on a 450 ft DC300XL cartridge
60:
Quarter inch cartridges: left, 400MB (QIC-EX); right, 120MB (QIC-80)
630:, a modification to support longer tapes and thus more data by the
1453:
1447:
1412:
1300:
1288:
643:
372:
141:
136:
128:
55:
1118:
894:
The
Essential Guide to Computer Data Storage: From Floppy to DVD
616:
237:
107:
1063:
233:
drive interface standards. Later QIC DC drives usually use the
1465:
956:
Evi Nemeth; Garth Snyder; Scott
Seebass; Trent Hein (2000).
397:
110:
interface, there is a SCSI "RETENSION" command to do this.
38:
754:
Solaris
Operating Environment System Administrator's Guide
392:
is an evolution of the QIC Minicartridge format, sold for
292:
inches (79 mm) size and is small enough to fit in a
987:
M. David Stone (February 7, 1995). "The Bigger Backup".
1047:
215:: 26-track, 525 MB on a 1020 ft DC6525 cartridge
106:
to equalize itself. For newer QIC drives that use a
1475:
1440:
1405:
1380:
1373:
1334:
1281:
1252:
1223:
1140:
1105:
1098:
1028:"PC Magazine Encyclopedia: Definition of: QIC-157"
319:20-track DC2000 mini-cartridge 205 ft. 40 MB
1003:"PC Magazine Encyclopedia: Definition of: QIC-EX"
332:28-track DC2080 mini-cartridge 205 ft. 80 MB
667:, a company dedicated to QIC, later acquired by
642:An interface standard for tape drives using the
322:20-track DC2000XL mini-cartridge 307½ ft. 60 MB
775:
773:
335:28-track DC2120 mini-cartridge 307½ ft. 120 MB
1075:
812:The Telecommunications Illustrated Dictionary
8:
869:
867:
865:
1377:
1102:
1082:
1068:
1060:
735:"New on the Market: TG-4020 and TG-4045".
264:(MC) form-factor was introduced. This is
221:: 30-track, 1.35 GB on a DC9135 cartridge
1048:The QIC international trade organisation
402:
694:IBM Tape Library Guide for Open Systems
679:
247:Other Data Cartridge (DC) look-alikes:
1514:Computer-related introductions in 1972
687:
685:
683:
7:
209:: 18-track, 150 MB, DC6150 cartridge
203:: 15-track, 125 MB, DC6150 cartridge
33:, commonly pronounced "quick") is a
959:Unix System Administration Handbook
225:Other QIC DC standards include the
148:The first QIC tape format was the
14:
16:Magnetic tape data storage format
396:use. This version, developed by
718:"QIC Standards Cross Reference"
1282:"Eighth" (0.15) inch (3.81 mm)
349:were designed to use the same
1:
1295:KC standard, Compact Cassette
1053:List of different QIC formats
848:(1st ed.). p. 324.
846:The System Engineers Handbook
874:"Everex Systems Excel 60F".
1509:Computer storage tape media
939:Upgrading and Repairing PCs
1530:
1381:Three quarter inch (19 mm)
1307:Tarbell Cassette Interface
1091:Magnetic-tape data storage
891:Andrei Khurshudov (2001).
593:
380:
377:40GB Travan tape cartridge
35:magnetic tape data storage
21:Cartridge (disambiguation)
18:
1476:Four millimeter (3.81 mm)
962:(3rd ed.). pp.
897:. Prentice Hall. p.
741:. July 1983. p. 560.
596:Scalable Linear Recording
880:: 58, 62. July 23, 1990.
844:John Black, ed. (1992).
162:inches (150 mm) by
1441:Eight millimeter (8 mm)
1224:Eight millimeter (8 mm)
665:Colorado Memory Systems
278:inches (60 mm) by
256:QIC Mini Cartridge (MC)
1342:Exatron Stringy Floppy
1253:Quarter inch (6.35 mm)
937:Scott Mueller (2003).
810:J.K. Petersen (2002).
660:Apple Tape Backup 40SC
378:
351:floppy disk controller
145:
134:
125:3M Data Cartridge (DC)
61:
27:Quarter inch cartridge
1335:Stringy (1.58–1.9 mm)
752:James Winsor (2003).
376:
140:
132:
59:
37:format introduced by
692:Larry Coyne (2011).
632:Verbatim Corporation
176:inches (98 mm)
133:QIC DC 600A cassette
85:or slipping clutch.
19:For other uses, see
1406:Half inch (12.7 mm)
1360:Rotronics Wafadrive
1313:Commodore Datasette
1141:Half inch (12.7 mm)
306:-inch (90 mm)
260:Later, the smaller
244:SCSI-2 interfaces.
379:
146:
135:
62:
29:tape (abbreviated
1496:
1495:
1492:
1491:
1369:
1368:
1106:Wide (19–25.4 mm)
973:978-0-13-020601-5
941:(14th ed.).
587:
586:
394:personal computer
144:4.1.1 QIC-24 tape
1521:
1378:
1160:TX-2 Tape System
1103:
1084:
1077:
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814:(2nd ed.).
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1325:IBM PC Cassette
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756:. p. 245.
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669:Hewlett-Packard
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615:A variant from
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65:Features of QIC
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1042:External links
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1038:
1037:
1019:
994:
991:. p. 238.
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972:
948:
945:. p. 698.
929:
914:
908:978-0130927392
907:
883:
861:
855:978-0121028206
854:
836:
833:. p. 196.
821:
818:. p. 768.
802:
799:. p. 270.
787:
784:. p. 283.
769:
763:978-0131014015
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703:978-0738435558
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381:Main article:
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178:Data Cartridge
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75:cassette tapes
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1348:ZX Microdrive
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696:. p. 9.
695:
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653:
651:
650:) interface.
649:
645:
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629:
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618:
610:
608:
606:
605:Tandberg Data
602:
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412:Speed (kB/s)
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262:Minicartridge
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1419:Redwood SD-3
1259:
1031:
1022:
1010:. Retrieved
1006:
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599:
535:1,200-1,600
387:
386:
355:floppy drive
346:
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68:
30:
26:
25:
1237:IBM 3570 MP
1202:LTO Ultrium
1154:IBM 7-track
1032:PC Magazine
1012:October 11,
1007:PC Magazine
989:PC Magazine
924:PC Magazine
831:PC Magazine
797:PC Magazine
782:PC Magazine
738:PC Magazine
722:www.qic.org
369:Travan (TR)
235:QIC-104/111
120:Generations
83:servo motor
1503:Categories
1319:DECtape II
675:References
365:encoding.
877:InfoWorld
816:CRC Press
628:QIC Extra
560:QIC-3095
532:QIC-3080
490:QIC-3020
462:QIC-3010
308:drive bay
1208:IBM 3592
1184:IBM 3590
1172:IBM 3480
1148:UNISERVO
1119:LINCtape
1113:IBM 7340
964:172, 175
654:See also
611:QIC-Wide
219:QIC-1350
1483:DDS/DAT
1454:Mammoth
1374:Helical
1166:9-track
1131:CDC 626
1125:DECtape
1093:formats
638:QIC-157
577:10,000
518:TR-3EX
448:TR-1EX
423:80-500
420:QIC-80
415:Tracks
406:Format
357:, with
301:⁄
287:⁄
273:⁄
242:QIC-121
213:QIC-525
207:QIC-150
201:QIC-120
171:⁄
157:⁄
97:⁄
71:capstan
47:⁄
1485:(1989)
1468:(1999)
1462:(1996)
1456:(1994)
1450:(1987)
1433:(2003)
1427:(19xx)
1421:(1995)
1415:(1992)
1398:(1992)
1394:Ampex
1391:(19xx)
1362:(1984)
1356:(1984)
1350:(1983)
1344:(1979)
1327:(1981)
1321:(1979)
1315:(1977)
1309:(1976)
1303:(1976)
1297:(1975)
1291:(1971)
1274:(1992)
1268:(1986)
1262:(1972)
1245:(1999)
1239:(1997)
1233:(1995)
1231:Travan
1216:(2006)
1214:T10000
1210:(2003)
1204:(2000)
1198:(2000)
1192:(1998)
1186:(1995)
1180:(1984)
1174:(1984)
1168:(1964)
1162:(1958)
1156:(1952)
1150:(1951)
1133:(1966)
1127:(1963)
1121:(1962)
1115:(1961)
1099:Linear
970:
905:
852:
760:
700:
623:QIC-EX
563:4,000
549:4,000
541:60/72
521:2,200
507:1,600
499:40/50
471:40/50
429:28/36
389:Travan
383:Travan
347:QIC-80
343:QIC-40
328:QIC-80
315:QIC-40
231:QIC-36
227:QIC-02
195:QIC-24
189:QIC-11
1448:Data8
1413:ArVid
1387:Sony
1301:DC100
1289:D/CAS
1272:Ditto
1196:T9940
1190:T9840
644:ATAPI
580:1024
574:TR-5
566:1024
552:1024
546:TR-4
504:TR-3
496:62.5
482:62.5
476:TR-2
468:62.5
454:62.5
440:62.5
434:TR-1
426:62.5
182:DC300
142:SunOS
1431:SAIT
1014:2016
968:ISBN
903:ISBN
850:ISBN
758:ISBN
698:ISBN
617:Sony
583:108
538:125
524:125
510:125
493:670
479:800
465:340
451:500
437:400
345:and
341:The
240:and
238:SCSI
229:and
108:SCSI
79:DATs
1466:VXA
1460:AIT
1425:DTF
1396:DST
1389:DIR
1266:SLR
1260:QIC
1243:ADR
1178:DLT
943:Que
899:140
648:IDE
603:is
601:SLR
590:SLR
569:72
555:72
527:50
513:50
485:50
457:36
443:36
363:RLL
361:or
359:MFM
77:or
31:QIC
1505::
1030:.
1005:.
966:.
901:.
864:^
772:^
720:.
682:^
398:3M
310:.
99:10
39:3M
1083:e
1076:t
1069:v
1034:.
1016:.
976:.
926:.
911:.
858:.
766:.
724:.
706:.
646:(
303:2
299:1
296:+
294:3
289:8
285:1
282:+
280:3
275:8
271:3
268:+
266:2
173:8
169:7
166:+
164:3
159:8
155:7
152:+
150:5
95:1
49:4
45:1
23:.
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