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GB/T 2020-1980Recording magnetic tape with 9 magnetic tracks, 12.7mm width and 32 lines/mm for information processing exchange (English PDF)

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Issued by

State Standards Administration

Level / Type

National · Recommended

Issue date

September 10, 1980

Implementation date

March 1, 1981

Scope

GB/T 2020-1980 (Recording magnetic tape with 9 magnetic tracks, 12.7mm width and 32 lines/mm for information processing exchange) is available as an English-translated PDF.

GB/T 2020-1980 — This Standard specifies 9 tracks, 12. 7 mm wide, the recording density of 32 lines/mm, according to the non-zero standard message formats and recording digital tape recording system.

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Document preview — GB/T 2020-1980

National Standard of the People's Republic of China

ICS: 35.220.20
Classification: G 83

Issued by: State Standards Administration

What this standard covers1
Document data2

What this standard covers

This Standard specifies 9 tracks, 12. 7 mm wide, the recording density of 32 lines/mm, according to the non-zero standard message formats and recording digital tape recording system. The standard applicable to the recording tape between the information processing system, a data communication system and its attached devices to exchange information.

Document data

International classification (ICS): 35.220.20.

Chinese classification (CCS): G83.

Estimated length of the Chinese original: 8,816 words.

Adopted international standard: ISO 1863-1976, NEQ.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 6 pages — is available in the English PDF.

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