DataMuseum.dk

Presents historical artifacts from the history of:

ICL Comet

This is an automatic "excavation" of a thematic subset of
artifacts from Datamuseum.dk's BitArchive.

See our Wiki for more about ICL Comet

Excavated with: AutoArchaeologist - Free & Open Source Software. 

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Index: 5 C D I R S T

⟦0d63a1670⟧ Bits:30004208 Julehilsen 1986 fra ICL A/S til ICL Comet, 5¼" Floppy Disk, CpmFSAuto, ImdContainer

    Length: 204800 (0x32000)
    Description: Bits:30004208 Julehilsen 1986 fra ICL A/S til ICL Comet
    Types: 5¼" Floppy Disk, CpmFSAuto, ImdContainer
    Notes: CP/M-fs(512_1024_0x0_16_*3+1+2+3_2:0_39:0), CP/M-fs(512_1024_0x0_16_*3+1+3+2_2:0_39:0)

CpmFSAuto

Media:             [0, 0, 1] … [39, 0, 10] {512: 400}
Signature:         512_1024_0x0_16_*3+1+2+3_2:0_39:0
Confidence score:  +7/-0
Sector size:       512
Block size:        1024
Directory entries: 16
Block number size: 8
Extent-mask:       0x00
Sector-interleave: 1, 4, 7, 10, 2, 5, 8, 3, 6, 9
Tracks:            (2, 0), (3, 0), (4, 0), (5, 0), (6, 0), (7, 0) […] (34, 0), (35, 0), (36, 0), (37, 0), (38, 0), (39, 0)
user bc length name artifact
0 0 30464 DEMOARK.COM ⟦f7bebaccd⟧
0 0 14080 README.COM ⟦2219d9d71⟧
0 0 9600 SKAT-86.ARK ⟦aafee5a19⟧ TextFile
0 0 9600 SKAT-87.ARK ⟦1b0556e64⟧ TextFile

CpmFSAuto

Media:             [0, 0, 1] … [39, 0, 10] {512: 400}
Signature:         512_1024_0x0_16_*3+1+3+2_2:0_39:0
Confidence score:  +7/-0
Sector size:       512
Block size:        1024
Directory entries: 16
Block number size: 8
Extent-mask:       0x00
Sector-interleave: 1, 4, 7, 10, 3, 6, 9, 2, 5, 8
Tracks:            (2, 0), (3, 0), (4, 0), (5, 0), (6, 0), (7, 0) […] (34, 0), (35, 0), (36, 0), (37, 0), (38, 0), (39, 0)
user bc length name artifact
0 0 30464 DEMOARK.COM ⟦e545afe10⟧
0 0 14080 README.COM ⟦87e872abd⟧
0 0 9600 SKAT-86.ARK ⟦2494020f8⟧ TextFile
0 0 9600 SKAT-87.ARK ⟦f4c164c54⟧ TextFile

CP/M filesystem probe

Geometry: [[0, 0, 1], [39, 0, 10]]

First credible dirsect is: (2, 0, 1) at 0x2800 with 0x0 attribute records

Credible directory tracks:
   (2, 0)  0x2800 6-0-0-1-0-0-1-0-0-1

Total credibility: 5

Block number width: ok8

   8     0     2    65     0  False
  16     0   770 16704     0   True

Block Sizes:
    1024 0x00 +5 -0
     128 0x00 +0 -5
     256 0x00 +0 -5
     512 0x00 +0 -5
    2048 0x01 +0 -5
    4096 0x03 +0 -5
    8192 0x07 +0 -5
   16384 0x0f +0 -5
   32768 0x1f +0 -5
   65536 0x3f +0 -5

Candidate interleaves in order of directory credibility:

Penalty  Name         Order                                                                     Resulting dir order
      0  Butler3      (1-4-7-10-2-5-8-3-6-9)                                                    [5]   +7/-0
      0  normal-1     (1-2-3-4-5-6-7-8-9-10)                                                    [5]   +6/-3
      0  normal-2     (1-3-5-7-9-2-4-6-8-10)                                                    [5]   +6/-3
      0  normal-3     (1-4-7-10-3-6-9-2-5-8)                                                    [5]   +7/-0
      0  normal-4     (1-5-9-3-7-2-6-10-4-8)                                                    [5]   +6/-4

File & label names found:
  0x0002800 (2, 0, 1)
    ProbeDirEnt {status=0x00, name=»SKAT-86 ARK«, xl=0x00, bc=0x00, xh=0x00, rc=0x4b, al=02030405060708090a0b000000000000}
    ProbeDirEnt {status=0x00, name=»DEMOARK COM«, xl=0x00, bc=0x00, xh=0x00, rc=0x80, al=0c0d0e0f101112131415161718191a1b}
    ProbeDirEnt {status=0x00, name=»DEMOARK COM«, xl=0x01, bc=0x00, xh=0x00, rc=0x6e, al=1c1d1e1f202122232425262728290000}
    ProbeDirEnt {status=0x00, name=»README  COM«, xl=0x00, bc=0x00, xh=0x00, rc=0x6e, al=2a2b2c2d2e2f30313233343536370000}
    ProbeDirEnt {status=0x00, name=»SKAT-87 ARK«, xl=0x00, bc=0x00, xh=0x00, rc=0x4b, al=38393a3b3c3d3e3f4041000000000000}
+   7 -   0 <Tree 0x0-0x19000-0x32000>
+   7 -   0 <Tree 0x0-0x19000-0x32000>
+   6 -   3 <Tree 0x0-0x19000-0x32000>

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