ISO 1861:1975
International Standard
Historical
·
Approved on
01 February 1975
Information processing — 7- track, 12,7 mm (0.5 in) wide magnetic tape for information interchange recorded at 8 rpmm (200 rpi)
ISO 1861:1975 Files
English
7 Pages
Historical
31.47 OMR
ISO 1861:1975 Scope
Specifies a 7-track, 8 rows per mm (rpmm) (200 rows per inch (rpi)) 12,7 mm (0,5 in) wide magnetic tape for interchangeability of tape between information processing systems which utilize 6- and 7-bit coded chracter sets, the latter being as specified in ISO 646. Refers solely to magnetic tape for digital recording, on which the direction of magnetization is nominally longitudinal as opposed to nominally transverse.
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