INTERNATIONAL STANDARD IS0 8860 2 1987 TECHNICAL CORRIGENDUM 1 Published 1990 I 1 15 INTERNATIONAL ORGANIZATION FOR STANDARDIZATION MEX,QYHAPOAHAR OPl AHM3AL@4R no CTAH~APTVl3AL&Wl ORGANISATION INTERN[.]
INTERNATIONAL STANDARD TECHNICAL CORRIGENDUM Published INTERNATIONAL INTERNATIONAL ORGANIZATION FOR STANDARDIZATION ELECTROTECHNICAL COMMISSION MEX,QYHAPOAHAR ME)KAYHAPOAHAR IS0 8860-2 : 1987 1990-I 1-15 OPl-AHM3AL@4R no CTAH~APTVl3AL&Wl 3JlEKTPOTEXHVlqECKAR KOMklCCklFI ORGANISATION l COMMISSION INTERNATIONALE ELECTROTECHNIQUE DE NORMALISATION INTERNATIONALE on 90 mm Information processing - Data interchange (3.5 in) flexible disk cartridges using modified frequency modulation recording at 958 ftprad on 80 tracks on each side Part 2: Track format TECHNICAL CORRIGENDUM Traitement modulation de l’information - Echange de donnees sw cartouches ;i disquette de 90 mm (3,5 in) utilisant de frkquence modifibe (MFM) P 958 ftprad sur 80 pistes sw chaque face - Partie 2: Schbma P de piste RECTIFICA TIF TECHNIQUE Technical un enregistrement corrigendum to International Standard IS0 8860-2: 1987 was prepared by ISO/IEC JTC 1, Information technology Page Clause Insert the following before the words “After formatting”: “Formatting of a track shall commence with the occurrence of Index Index shall occur within + 410 ps at 300 r/min, at 600 r/min, of the instant at which reference line B (see 7.4.2.2 of IS0 8860-I) is parallel to the line of access During formatting, the rotational - averaged Index-to-Index: - averaged over a sector: UDC data processing, c 1990 ISO/IEC Printed speed of the disk shall be 300 r/min 300 r/min or 600 r/min or 600 r/min + 2,0 % + 2,0 %” Ref No lSO8860-2 681.327.63 Descriptors: in Switzerland and + 205 ps information interchange, data recording r4evices, magnetic rlisks, flexible r-lisks, : 1987Kor.l track formats, : 1990 (E) specifications This page intentionally left blank