ISO 20061:2001
ISO 20061:2001 Information technology – 12,65 mm wide magnetic tape cassette for information interchange – Helical scan recording – DTF-2
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Description
This International Standard specifies the physical and magnetic characteristics of magnetic tape cassettes, using magnetic tape
12,65 mm wide so as to provide physical interchange of such cassettes between drives. It also specifies the quality of the
recorded signals, the recording method and the recorded format, called Digital Tape Format-2 (DTF-2), thereby allowing data
interchange between drives by means of such cassettes. The format supports variable length Logical Records, high-speed
search, and the use of a registered algorithm for data compression.
This International Standard specifies two sizes of cassette. For the purposes of this International Standard the larger cassette is
referred to as Type L, and the smaller as Type S.
Together with a standard for volume and file structure, e.g. International Standard ISO 1001, this International Standard
provides for full data interchange between data processing systems.
Edition
1
Published Date
2001-11-29
Status
PUBLISHED
Pages
100
Language
English
Format
Secure PDF
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Abstract
This International Standard specifies the physical and magnetic characteristics of magnetic tape cassettes, using magnetic tape
12,65 mm wide so as to provide physical interchange of such cassettes between drives. It also specifies the quality of the
recorded signals, the recording method and the recorded format, called Digital Tape Format-2 (DTF-2), thereby allowing data
interchange between drives by means of such cassettes. The format supports variable length Logical Records, high-speed
search, and the use of a registered algorithm for data compression.
This International Standard specifies two sizes of cassette. For the purposes of this International Standard the larger cassette is
referred to as Type L, and the smaller as Type S.
Together with a standard for volume and file structure, e.g. International Standard ISO 1001, this International Standard
provides for full data interchange between data processing systems.
Previous Editions
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