• Hey Guest Did you know in signal processing, data compression, source coding or bit-rate reduction involves encoding information using fewer bits than the original representation. Compression can be either lossy or lossless. Lossless compression reduces bits by identifying and eliminating statistical redundancy. No information is lost in lossless compression. Lossy compression reduces bits by removing unnecessary or less important information.

7-zip

Alan

Staff
Staff member
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Whether you're looking to save space, secure data, or just back up your important data in an efficient manner, 7-Zip has all the bases covered.

7-Zip is free, fast and tiny. As well as the all-important Zip format, there's support for the creation of numerous other types of compressed file including 7z, BZIP2 and TAR.

Things are even more impressive when it comes to 7-Zip's decompression support; the list is seriously lengthy: AR, ARJ, CAB, CHM, CPIO, CramFS, DMG, EXT, FAT, GPT, HFS, IHEX, ISO, LZH, LZMA, MBR, MSI, NSIS, NTFS, QCOW2, RAR, RPM, SquashFS, UDF, UEFI, VDI, VHD, VMDK, WIM, XAR and Z.

The fact that ZIP and RAR files are covered is reason enough to install 7-Zip right away – everything else is a bonus. Compression rates in the program's native format are particularly impressive.

If you need to be able to work with anything other than regular zip files, 7-Zip is ideal for the job. A tool that easily falls under the heading 'essential'.


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