Reaffirmed 2021

NATIONAL FOREWORD

This Indian Standard (Part 1) (First Revision) which is identical with ISO/IEC 7487-1 : 1993 ‘Information technology - Data interchange on 130 mm (5,25 in) flexible disk cartridges using modified frequency modulation recording at 7 958 ftprad, 1,9 tpmm (48 tpi), on both sides - ISO type 202 - Part 1: Dimensional, physical and magnetic characteristics’ issued by the International Organization forStandardization (ISO) and International Electrotechnical Commission (IEC) jointly was adopted by the Bureau of Indian Standards on the recommendations of the Computer Hardware, Peripherals and Identification Cards Sectional Committee and approval of the Electronics and Information Technology Division Council.

This standard was first published in 1986 and was identical with ISO 7487-1 : 1985. This standard is now being revised to align it with the latest version of ISO/IEC 7487-1 : 1993.

This standard is published in three parts. Other parts in this series are:

Part 2 Track format A

Part 3 Track format B

The text of ISO/IEC Standard has been approved as suitable for publication as an Indian Standard without deviations. Certain conventions are, however, not identical to those used in Indian Standards. Attention is particularly drawn to the following:

a) Wherever the words ‘International Standard’ appear referring to this standard, they should be read as ‘Indian Standard’.

b) Comma (,) has been used as a decimal marker while in Indian Standards, the current practice is to use a point (.) as the decimal marker.