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INCITS/ISO 8630-2 : 1987

Current
Current

The latest, up-to-date edition.

INFORMATION PROCESSING - DATA INTERCHANGE ON 130 MM (5.25 IN) FLEXIBLE DISK CARTRIDGES USING MODIFIED FREQUENCY MODULATION RECORDING AT 13262 FTPRAD, ON 80 TRACKS ON EACH SIDE - PART 2: TRACK FORMAT A FOR 77 TRACKS
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-01-2002

0 Introduction
1 Scope and field of application
2 Conformance
3 References
4 General requirements
  4.1 Mode of recording
  4.2 Track location tolerance of the recorded flexible disk
       cartridge
  4.3 Recording offset angle
  4.4 Density of recording
  4.5 Flux transition spacing
  4.6 Average Signal Amplitude
  4.7 Byte
  4.8 Sector
  4.9 Cylinder
  4.10 Cylinder Number
  4.11 Data capacity of a track
  4.12 Hexadecimal notation
  4.13 Error Detection Characters (EDC)
5 Track layout after the first formatting for track 00, side 0
  5.1 Index Gap
  5.2 Sector Identifier
  5.3 Identifier Gap
  5.4 Data Block
  5.5 Data Block Gap
  5.6 Track Gap
6 Track layout after the first formatting for all tracks
  excluding track 00, side 0
  6.1 Index Gap
  6.2 Sector Identifier
  6.3 Identifier Gap
  6.4 Data Block
  6.5 Data Block Gap
  6.6 Track Gap
7 Track layout of a recorded flexible disk for data interchange
  7.1 Representation of characters
  7.2 Good and bad cylinders
  7.3 Requirements for cylinders
  7.4 Layout of the tracks of a good cylinder
  7.5 Layout of the tracks of a bad cylinder
Annexes
A EDC implementation
B Procedure and equipment for measuring flux transition spacing
C Data separators for decoding MFM recording

Describes the quality of recorded signals, the track layout, and a track format to be used on 130 mm (5.25 in), 13262 ftprad flexible disk cartridges intended for data interchange between data processing systems.

DocumentType
Standard
Pages
16
PublisherName
Information Technology Industry Council
Status
Current

ISO/IEC 6429:1992 Information technology Control functions for coded character sets
ISO/IEC 4873:1991 Information technology ISO 8-bit code for information interchange Structure and rules for implementation
ISO/IEC 2022:1994 Information technology Character code structure and extension techniques
ISO 7665:1983 Information processing File structure and labelling of flexible disk cartridges for information interchange
ISO/IEC 646:1991 Information technology ISO 7-bit coded character set for information interchange
ISO 7065-2:1985 Information processing Data interchange on 200 mm (8 in) flexible disk cartridges using modified frequency modulation recording at 13 262 ftprad, 1,9 tpmm (48 tpi), on both sides Part 2: Track format

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