Quantum compressed archive

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|formattype=electronic
 
|formattype=electronic
 
|subcat=Archiving
 
|subcat=Archiving
|extensions={{ext|q}}, {{ext|pak}}
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|extensions={{ext|q}}, others
|released=≤1995
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|released=≤1994
 
}}
 
}}
'''Quantum compressed archive''' is an archive format developed by Cinematronics corporation. It runs on a normal computer, not a [[quantum computer]].
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'''Quantum''' is a compressed archive utility, and associated file format, developed by Cinematronics corporation. It runs on a normal computer, not a [[quantum computer]].
 +
 
 +
== Discussion ==
 +
As of v0.97, the distribution includes:
 +
 
 +
* PAQ.EXE - Compressor for DOS
 +
* UNPAQ.EXE - Decompressor for DOS
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* QWIN.EXE - Decompressor for Windows 3.x
 +
 
 +
The software (at least for v0.96-0.97) is consistently named "Quantum", despite filenames that may suggest other names.
  
 
== Identification ==
 
== Identification ==
Files begin with bytes <code>'D' 'S'</code>. The next byte (the major version number) is probably always <code>0x00</code>.
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Files begin with bytes {{magic|'D' 'S'}}. The next byte (the major version number) is probably always <code>0x00</code>.
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== Specifications ==
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* [{{SACFTPURL|pack|quant097.zip}} quant097.zip] → QUANTUM.DOC → "Archive file format" section
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* [http://www.russotto.net/quantumcomp.html Quantum compression format]
  
 
== Software ==
 
== Software ==
* [ftp://ftp.sac.sk/pub/sac/pack/quant097.zip quant097.zip] (old MS-DOS and Windows binaries)
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* {{CdTextfiles|pdos9606/ARCHIVER/TOOLS/QUANT096.ZIP|Quantum 0.96}}
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* [{{SACFTPURL|pack|quant097.zip}} Quantum 0.97]
  
 
== Sample files ==
 
== Sample files ==
 
* http://cd.textfiles.com/1000games/ → *.PAK
 
* http://cd.textfiles.com/1000games/ → *.PAK
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* {{DexvertSamples|archive/quantum}}
  
 
== Related formats ==
 
== Related formats ==
 
* Some Microsoft [[Cabinet|CAB]] files use the same "Quantum" compression scheme as this format.
 
* Some Microsoft [[Cabinet|CAB]] files use the same "Quantum" compression scheme as this format.
 
== Links ==
 
* [http://www.russotto.net/quantumcomp.html Quantum compression format]
 
* [[Wikipedia:Quantum compression|Wikipedia: Quantum compression]]
 

Latest revision as of 02:54, 28 December 2023

File Format
Name Quantum compressed archive
Ontology
Extension(s) .q, others
Released ≤1994

Quantum is a compressed archive utility, and associated file format, developed by Cinematronics corporation. It runs on a normal computer, not a quantum computer.

Contents

[edit] Discussion

As of v0.97, the distribution includes:

  • PAQ.EXE - Compressor for DOS
  • UNPAQ.EXE - Decompressor for DOS
  • QWIN.EXE - Decompressor for Windows 3.x

The software (at least for v0.96-0.97) is consistently named "Quantum", despite filenames that may suggest other names.

[edit] Identification

Files begin with bytes 'D' 'S'. The next byte (the major version number) is probably always 0x00.

[edit] Specifications

[edit] Software

[edit] Sample files

[edit] Related formats

  • Some Microsoft CAB files use the same "Quantum" compression scheme as this format.
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