Quarter inch cartridge tape (abbreviated QIC, commonly pronounced "quick") is a
magnetic tape data storage format introduced by
3M in 1972, with derivatives still in use as of 2007. 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 one quarter inch (1/4") wide and anywhere from 300 to 1500 feet long. Data is written to tape in linear tracks in what is called "serpentine" mode, where the tracks alternate direction by use of a head switch or step. Since the introduction of the format, QIC 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 organisation which encouraged hardware and software developers to use this type of drive and media.
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QUALITY INFORMATION USING CYCLE TIME [HEWLETT-PACKARD]. QUARTER-INCH CARTRIDGE. QIC