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Joint Photographic Experts Group Image  |  2002-07-08  |  162.5 KB  |  960x1283  |  8-bit (256 colors)
   ocr: 48 BAM (Block Allocation Map) Formats 4040, 2031, 15411 BAM Format Track 18 Sector 00 Byte* Description Data 0-1 Track/Sector of first Directory block 18-01 2 ASCII 'a' Identifies DOS: 2.0 format 65 3 Reserved for future DOS use 00 4-143 BAM: Each Track Controlled By 4 bytes tracks 1-35 4 Byte 0: Total Blocks Free In Track: track 1: 5 Byte 1: Bit Map Ofs Sector Allocation sectors 0-7 6 Byte 2: Bit Map Ofs Sector Allocation sectors 8-15 7 Byte 3: Bit Map Ofs Sector Allocation sectors 16-end Abit ON: =1 represents al FREES Sector Abit OFF= =0 represents an Allocated! Sector 8-143 4Byte Track Map ...