LZO: Lempel-Ziv-Oberhumer

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Lempel-Ziv-Oberhumer (LZO) is a data compression algorithm that is focused on decompression speed.

The algorithm is lossless and the source is thread safe. A free software tool which implements the LZO algorithm is lzop.

The original library was written in ANSI C, and it has been made available under the GNU General Public License.

Versions of LZO are available for the Perl, Python and Java languages.Mac OS X Mac OS X is the tenth and the latest version of the Macintosh operating system, and is designed and developed by Apple Computer to run on their Macintosh line of personal computers.

Mac OS X is built on Darwin, an open source Unix-like environment which is based on the BSD source tree, and the Mach microkernel.