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The operating systems the archivers can run on without emulation or compatibility layer. Ubuntu's own GUI Archive manager, for example, can open and create many archive formats (including Rar archives) even to the extent of splitting into parts and encryption and ability to be read by the native program.
There are numerous compression algorithms available to losslessly compress archived data; some algorithms are designed to work better (smaller archive or faster compression) with particular data types. Archive formats are used by most operating systems to package software for easier distribution and installation than binary executables.
In 2010 Tom's Hardware benchmarks comparing it to the other popular archivers, FreeArc narrowly outperformed WinZip, 7-Zip, and WinRAR in its "best compression" mode. In the "default compression" tests, it lost to 7-Zip's LZMA2, but still compressed better than WinRAR and WinZip. [9]
I believe winzip is not as good as win winrar when compared in memory space occupitation and hard disk also. Thought file association is better but use-less. —Preceding unsigned comment added by 117.192.133.92 18:36, 30 March 2009 (UTC)
In 2011, TopTenReviews found that the 7z compression was at least 17% better than ZIP, [18] and 7-Zip's own site has since 2002 reported that while compression ratio results are very dependent upon the data used for the tests, "Usually, 7-Zip compresses to 7z format 30–70% better than to zip format, and 7-Zip compresses to zip format 2–10% ...
Name Creates [a] Modifies? [b]Mounts? [c]Writes/ Burns? [d]Extracts? [e]Input format [f] Output format [g] OS License; 7-Zip: Yes: No: No: No: Yes: CramFS, DMG, FAT ...
WinRAR is a trialware file archiver utility, developed by Eugene Roshal of win.rar GmbH. It can create and view archives in RAR or ZIP file formats, [ 6 ] and unpack numerous archive file formats. To enable the user to test the integrity of archives, WinRAR embeds CRC32 or BLAKE2 checksums for each file in each archive.
The .ZIP file format was designed by Phil Katz of PKWARE and Gary Conway of Infinity Design Concepts. The format was created after Systems Enhancement Associates (SEA) filed a lawsuit against PKWARE claiming that the latter's archiving products, named PKARC, were derivatives of SEA's ARC archiving system. [3]