.hm 1 .he PART 4: DISK SURVEY Information on Disk Formats .pa Š.he UCPM Manual -- Disk Format Survey, Page # DISK FORMAT SURVEY: Name of Disk Format: Altos double density Computers on which this disk format is or may be used: Altos Physical size of disk (8", 5.25", 3.5"): 8 Recording format (IBM, SS, DD, QD, Apple, etc.): SSDD Sides: 1 Tracks/Side: 77 Physical Sectors/Track: 15 Logical Sectors to Physical Sectors: 4 Location of bootup routine: track 0 sector 1 Location of directory: track 2 sector 1 Size of directory: 128 entries (4K) Allocation group size: 4K Is there a standard form of on-disk time/date stamping? What is it? Standard MP/M time/date stamping Other information on disk format:      Secondarù  SSDÄ  formaô  usinç 12¸ bytå physicaì  sectoró  ió  alsï      availablå alsï caî read/writå standarä SSSÄ format .pa Š DISK FORMAT SURVEY: Name of Disk Format: AMSTRAD System Format Computers on which this disk format is or may be used: AMSTRAD Physical size of disk (8", 5.25", 3.5"): 3" Recording format (IBM, SS, DD, QD, Apple, etc.): SS Sides: 2 Tracks/Side: 40 Physical Sectors/Track: 9 Logical Sectors to Physical Sectors: 4/1 Location of bootup routine: Track 0 Location of directory: Track 0 Size of directory: 64 Allocation group size: Is there a standard form of on-disk time/date stamping? What is it? CP/M+ standard format Other information on disk format: reads also IBM 40Tr, 8SecPTr .pa Š DISK FORMAT SURVEY Name of Disk Format: Atari CP/M Format Computers on which this disk format is or may be used: AMSTRAD/Atari Physical size of disk (8", 5.25", 3.5"): 3.5" Recording format (IBM, SS, DD, QD, Apple, etc.): DSDD Sides: 2 Tracks/Side: 80 Physical Sectors/Track: 9 Logical Sectors to Physical Sectors: 4/1 Location of bootup routine: n.a. Location of directory: Tr. 2 Size of directory: 112 Allocation group size: Is there a standard form of on-disk time/date stamping? What is it? CP/M+ standard Other information on disk format: used also on Atari ST CP/M Emulator .pa Š DISK FORMAT SURVEY: Name of Disk Format: Apple CP/M (5.25") Computers on which this disk format is or may be used: Apple Physical size of disk (8", 5.25", 3.5"): 5.25" Recording format (IBM, SS, DD, QD, Apple, etc.): Apple Sides: 1 Tracks/Side: 35 Physical Sectors/Track: 16 Logical Sectors to Physical Sectors: 2 logical = 1 physical Location of bootup routine: track 0 sector 0 Location of directory: track 3 (standard cp/m) Size of directory: Allocation group size: Is there a standard form of on-disk time/date stamping? What is it? Other information on disk format: .pa Š DISK FORMAT SURVEY: Name of Disk Format: Apple Disk II Computers on which this disk format is or may be used: Apple II series Physical size of disk (8", 5.25", 3.5"): 5.25" Recording format (IBM, SS, DD, QD, Apple, etc.): Apple Sides: 1 Tracks/Side: 35 Physical Sectors/Track: 16 (256-byte sectors) Relation of Logical Sectors to Physical Sectors: 2 128-byte logical sectors (low,high order) = 1 256-byte physical sector. Software translation: Logical sector: 0,1 2,3 4,5 6,7 8,9 10,11 12,13 14,15 Physical sector: 0 3 6 9 12 15 2 5 Logical sector: 16,17 18,19 20,21 22,23 24,25 26,27 28,29 30,31 Physical sector: 8 11 14 1 4 7 10 13 Location of bootup routine: Tracks 0,1,2 <-- mixed 6502 & z-80 code !! Location of directory: Track 3, sectors 0-11 Size of directory: 48 32-byte entries Allocation group size: 1K bytes / block; 16K bytes / extent. Is there a standard form of on-disk time/date stamping? No. What is it? Other information on disk format:      Thå  logical/physicaì  translatioî  ió normallù donå  bù  thå  BIOÓ      read/writå   routines¬ NOÔ bù thå sectraî routine¬ sincå  thå  BDOÓ      haó nï capabilitù tï converô 12¸-bytå tï 25¶-bytå sectors. .pa Š DISK FORMAT SURVEY: Name of Disk Format: Cromemcï Z2D DSSD (Double Side, Single Density) Computers on which this disk format is or may be used: Cromemco Z2-D Physical size of disk (8", 5.25", 3.5"): 5.25" Recording format (IBM, SS, DD, QD, Apple, etc.): Cromemco DSSD format Sides: 2 Tracks/Side: 40 Physical Sectors/Track: 18 Relation of Logical Sectors to Physical Sectors: 4:1 interleave Location of bootup routine: C0, H0, S0 Location of directory: C2, H0, S0 Size of directory: 64 entry Allocation group size: 1K Is there a standard form of on-disk time/date stamping? NO What is it? Other information on disk format: Doublå  Sidå  adaptatioî oæ Cromemcï Singlå  Side¬  Singlå  Densitù      Format .pa Š DISK FORMAT SURVEY: Name of Disk Format: Epson QX-10 Computers on which this disk format is or may be used:      Manù  (caî  read¬  format¬ anä writå oveò 10°  differenô  CPÍ  disë      formató aó welì aó MÓ-DOÓ disks. Physical size of disk (8", 5.25", 3.5"): 5.25" Recording format (IBM, SS, DD, QD, Apple, etc.): IBM Sides: 2 Tracks/Sideº 40 Physical Sectors/Track: Relation of Logical Sectors to Physical Sectors: Location of bootup routine: Tracks 0 and 1 Location of directory: Tracks 2 et seq Size of directory: Allocation group size: Is there a standard form of on-disk time/date stamping? Yes What is it? Other information on disk format: .pa Š DISK FORMAT SURVEY: [Note: I have a Shugart 801 & a Qume DSDD that I use in DSSD] Name of Disk Format: Generic CP/M (8") Computers on which this disk format is or may be used: Physical size of disk (8", 5.25", 3.5"): 8" Recording format (IBM, SS, DD, QD, Apple, etc.): SSSD and DSSD Sides: 1 & 2 Tracks/Side: Physical Sectors/Track: Relation of Logical Sectors to Physical Sectors: Location of bootup routine: Location of directory: Size of directory: Allocation group size: Is there a standard form of on-disk time/date stamping? What is it? Other information on disk format: .pa Š DISK FORMAT SURVEY: Name of Disk Format: 8" Exchange Format and 8" 1K sector, 9 Sectors/track DD Computers on which this disk format is or may be used: Exchange format on any Physical size of disk (8", 5.25", 3.5"): 8" Recording format (IBM, SS, DD, QD, Apple, etc.): Sides: 1 or 2 Tracks/Side: 77 Physical Sectors/Track: 26 or 9 Relation of Logical Sectors to Physical Sectors: 1 or 8 Location of bootup routine: track 0 and 1 on exchange; track 0 on DD Location of directory: First and second alloc. unit on exchange; first on DD Size of directoryº 64 or 128 entries (2K or 4K bytes) Allocation group size: 1K on exchange; 4k on DD Is there a standard form of on-disk time/date stamping? Yes What is it? P2DOS Other information on disk format: See my article in The Computer Journal¬ Issue number 30. .pa Š DISK FORMAT SURVEY: Name of Disk Format: Kaypro DSDD Oè yes¬ thå disë formatº 1° sectors/track¬ doublå interleavinç ¨  É      thinë )¬ 4° tracks¬ 6´ extents¬ 1Ë blockó oî SÓ anä 2Ë oî DS¬  booô      tracë 00¬ directorù tracë 01 .pa Š DISK FORMAT SURVEY: Name of Disk Format: MULTIFLEX Computers on which this disk format is or may be used: MULTIFLEX Physical size of disk (8", 5.25", 3.5"): 5.25" Recording format (IBM, SS, DD, QD, Apple, etc.): DD 512BYTE SECTOR. Sides: 2 Tracks/Side: 35 Physical Sectors/Track: 9 Logical Sectors to Physical Sectors: Location of bootup routine: side 0, track 0, sector 1 Location of directory: side 0, track 2 Size of directory: Allocation group size: Is there a standard form of on-disk time/date stamping? What is it? NO Other information on disk format: .pa Š DISK FORMAT SURVEY: Name of Disk Format: Northstaò Format (Uniquå 1° harä sectoò format) Computers on which this disk format is or may be used: Recording format (IBM, SS, DD, QD, Apple, etc.)º SD Sides: 2 Tracks/Side: 35 Physical Sectors/Trackº 1° (hard) Relation of Logical Sectors to Physical Sectorsº don'ô know Location of bootup routineº Iî booô PROÍ oî motherboard Location of directoryº Tracë 2 Size of directoryº 6´ entries Allocation group sizeº 2k Is there a standard form of on-disk time/date stamping? What is it? Noô standard® É uså Z80DOS. Other information on disk format: 4¸ tpi 36° Ë byteó peò disë formatted .pa Š DISK FORMAT SURVEY: Name of Disk Format: Osborne SSSD Computers on which this disk format is or may be used: Osborne 1 Osborne Executive (can read/write) Physical size of disk (8", 5.25", 3.5"): 5.25" Recording format (IBM, SS, DD, QD, Apple, etc.)º SD Sides: 1 Tracks/Side: 40 Physical Sectors/Track: Relation of Logical Sectors to Physical Sectors: Location of bootup routine: Track 0 Location of directory: Size of directory: Allocation group size: 2k Is there a standard form of on-disk time/date stamping? What is it? Other information on disk format: .pa Š DISK FORMAT SURVEY: Name of Disk Formatº Osborne SSDD Computers on which this disk format is or may be used: Osborne Executive, Osborne 1 with DD card Physical size of disk (8", 5.25", 3.5"): 5.25" Recording format (IBM, SS, DD, QD, Apple, etc.)º DD Sides: 1 Tracks/Sideº 40 Physical Sectors/Track: Relation of Logical Sectors to Physical Sectors: Location of bootup routine: Track 0 Location of directory: Size of directory: Allocation group size: 1k Is there a standard form of on-disk time/date stamping? What is it? CP/M 3.0 timestamps for Executive only Other information on disk format: .pa Š DISK FORMAT SURVEY: Name of Disk Format: Stride 640K format Computers on which this disk format is or may be used: Other Strides, Sages. Physical size of disk (8", 5.25", 3.5"): 5.25" Recording format (IBM, SS, DD, QD, Apple, etc.): DD/96TPI Sides: 2 Tracks/Side: 80 Physical Sectors/Track: 8 Logical Sectors to Physical Sectors: 4 logical to 1 physical Location of bootup routine: First two tracks Location of directory: start of third track Size of directory: 64 dirents, standard (can be set upto 1024 dirents) Allocation group size: 2048 standard on floppies, setable (1K to 16K) Is there a standard form of on-disk time/date stamping? No What is it? Other information on disk format: Fully configurable .pa Š DISK FORMAT SURVEY: Name of Disk Format: Sunswick Engineering 5-640 Computers on which this disk format is or may be used:      privatå format¬ onlù oî mù machine¬ aó faò aó É know. Physical size of disk (8", 5.25", 3.5"): 5 inch Recording format (IBM, SS, DD, QD, Apple, etc.): 96 TPI (Quad density) Sides: 2 Tracks/Side: 84 Physical Sectors/Track: 1 (4K physical sectors) Relation of Logical Sectors to Physical Sectors: 1:1 (no skewing) Location of bootup routine: None Location of directory: Track 2 Size of directory: 8K Allocation group size: 4K Is there a standard form of on-disk time/date stamping? No What is it? Other information on disk format:      Thió formaô waó inventeä tï makå writinç oæ disë driveró easù  wheî      useä witè fulì 8Ë tracë buffers® Iô probablù wouldn'ô worë welì oî      otheò machines¬ duå tï thå 4Ë physicaì sectoò size. .pa Š DISK FORMAT SURVEY: Name of Disk Format: SORD Computers on which this disk format is or may be used: SORDS, ??????? Physical size of disk (8", 5.25", 3.5")º 5.25" Recording format (IBM, SS, DD, QD, Apple, etc.)º QD Sidesº 2Tracks/Side:?? Physical Sectors/Track:?? Relation of Logical Sectors to Physical Sectors:?? Location of bootup routine:?? Location of directory:?? Size of directory:?? Allocation group size:?? Is there a standard form of on-disk time/date stamping? What is it?No Other information on disk format: .pa Š DISK FORMAT SURVEY: Name of Disk Format: Televideo (TS802 / TS803 / TPC) Computers on which this disk format is or may be used: ALL Televideo CP/M machines. Uniform & Mediamaster know of this format, The Davidge DSB6000 can also access these disks. Physical size of disk (8", 5.25", 3.5"): 5.25 Recording format (IBM, SS, DD, QD, Apple, etc.): MFM - DS DD Sides: 2 Tracks/Side: 40 Physical Sectors/Track: 18 Relation of Logical Sectors to Physical Sectors:      eacè  physicaì sectoò ió 25¶ bytesº sï eacè "logical¢ tracë  ió  7²      sectoró  (1¸  ª ² logicaì sectoró ¯ phyó secô ª ²  sides)®  Pasô      thió therå ió nï logicaì sectoò skewinç ­ howeveò ³ tï ± (É  think©      PHYSICAÌ  sectoò  ske÷ ió applieä wheî thå disë ió  formatted®  Thå      practicaì  upshoô ió thaô aó faò aó thå BDOÓ ¦ BIOÓ  arå  concerneä      therå ió nï skewinç oæ anù kinä aô all. Location of bootup routine: Initial boot sector: track 0 sector 0 BDOS / BIOS run track 0 PHYSICAL sector 1 up to track 1 sector 12 (I think) Location of directory: Track 2 Size of directory: 2K - 64 entries Allocation group size: 2K Is there a standard form of on-disk time/date stamping? What is it? NONE Other information on disk format: The exact mechanics of double sidedness: logical sectors 0 and 1 ==> side 0 physical 0 logical sectors 2 and 3 ==> side 0 physical 1 ..... logical sectors 34 and 35 ==> side 0 physical 17 logical sectors 36 and 37 ==> side 1 physical 0 ..... logical sectors 70 and 71 ==> side 1 physical 17 .pa Š DISK FORMAT SURVEY: Name of Disk Format: Visual Technology proprietary Computers on which this disk format is or may be used: Visual Technology 1050 Physical size of disk (8", 5.25", 3.5"): 5.25 Recording format (IBM, SS, DD, QD, Apple, etc.): DD Sides: 2 (?) Tracks/Side: 90 ? Physical Sectors/Track: 40 Relation of Logical Sectors to Physical Sectors: Huh? Location of bootup routine: PROM / Tracks 0 & 1 Location of directory: Track 3 Size of directory: 128 entries Allocation group size: 2k Is there a standard form of on-disk time/date stamping? YES What is it? CP/M 3 Std. .pa Š