https://www.cpcwiki.eu/index.php?title=Columbia&feed=atom&action=historyColumbia - Revision history2024-03-28T10:23:39ZRevision history for this page on the wikiMediaWiki 1.25.1https://www.cpcwiki.eu/index.php?title=Columbia&diff=33021&oldid=prevMacDeath at 21:50, 8 October 20092009-10-08T21:50:22Z<p></p>
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</table>MacDeathhttps://www.cpcwiki.eu/index.php?title=Columbia&diff=8919&oldid=prevPV250X: + Category Applications2006-10-02T20:18:18Z<p>+ Category Applications</p>
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</table>PV250Xhttps://www.cpcwiki.eu/index.php?title=Columbia&diff=8843&oldid=prevChaRleyTroniC at 14:42, 1 October 20062006-10-01T14:42:41Z<p></p>
<p><b>New page</b></p><div>Columbia was a file compression utility written by [[ChaRleyTroniC]].<br />
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Unlike most other AMSDOS 'crunchers', Columbia's strength was in compressing data and multi-file archives, rather than single executable files. As from version 1.2, several files could be compressed together into one .MRC (Multi-Record Columbia) file. In this respect, it was more like the many compression and decompression utilities available under [[CP/M]]. It was written for the Amstrad Action covertape ('Action Pack' 48, issue ???) rather than for the 'scene', something that was reflected in its feature set.<br />
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The executable option was rarely used, though one example is TOGETHER.BIN - a runnable archive of the 'Lets get it together' thread from [[comp.sys.amstrad.8bit]], included on side 2 of [[BTL]] 4. Screen memory would typically be used for the decompression.<br />
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Decrunching source was released with the program. Columbia was slow to decompress compared with other AMSDOS crunchers, though faster to compress than (say) Crown's [[Crunch]] or [[Turbo Imploder]]. Like [[Cheese]], it used an LZW algorithm.</div>ChaRleyTroniC