اقتباس:

هذا البرنامج الغنى عن التعريف هو أحد أهم البرامج الأساسية التى لا غنى عنها فى أى جهاز .
فأغلب الملفات التى نقوم بتحميلها من الإنترنت تكون مضغوطة ويجب فك الضغط عنها ,
كما أن هذا البرنامج يدعم أكثر من 70 لغة من ضمنها اللغة العربية .
7-Zip is a file archiver with a high compression ratio. Usually, 7-Zip compresses to 7z format 30-70% better than to zip format. High compression ratio in new 7z format with LZMA compression.
Supported formats – Packing / unpacking: 7z, ZIP, GZIP, BZIP2 and TAR. Unpacking only: 7z, ZIP, RAR, GZIP, GZ, BZIP2, BZ2, TAR, CAB, ISO, ARJ, LZH, LHA, CHM, MSI, WIM, Z, CPIO, RPM, DEB, CPIO, DMG, FAT, HFS, LZMA, NTFS, SPLIT, SWM, TAZ, TBZ, TBZ2, TGZ, TPZ, VHD, XAR, XZ, Z and NSIS. For ZIP and GZIP formats, 7-Zip provides a compression ratio that is 2-10 % better than the ratio provided by PKZip and WinZip.
Self-extracting capability for 7z format. Integration with Windows Shell. Powerful File Manager. Localizations for 70 languages.
The main features of 7-Zip:
High compression ratio in 7z format with LZMA and LZMA2 compression
Supported formats:
Packing / unpacking: 7z, XZ, BZIP2, GZIP, TAR, ZIP and WIM
Unpacking only: 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.
For ZIP and GZIP formats, 7-Zip provides a compression ratio that is 2-10 % better than the ratio provided by PKZip and WinZip
Strong AES-256 encryption in 7z and ZIP formats
Self-extracting capability for 7z format
Integration with Windows Shell
Powerful File Manager
Powerful command line version
Plugin for FAR Manager
Localizations for 87 languages
7-Zip works in Windows 10 / 8 / 7 / Vista / XP / 2012 / 2008 / 2003 / 2000 / NT. There is a port of the command line version to Linux/Unix.
7z has an open architecture, so it can support any new compression method, too.
The following methods currently are integrated into 7z:
LZMA – Improved and optimized version of LZ77 algorithm
PPMD – Dmitry Shkarin’s PPMdH with small changes
BCJ – Converter for 32-bit x86 executables
BCJ2 – Converter for 32-bit x86 executables
BZip2 – Standard BWT algorithm
Deflate – Standard LZ77-based algorithm
LZMA is the default and general compression method of 7z format. The main features of LZMA are:
High compression ratio
Variable dictionary size (up to 4 GB)
Compression speed: about 1 MB/s on 2 GHz CPU
Decompression speed: about 10-20 MB/s on 2 GHz CPU
Small memory requirement for decompression (depend from dictionary size)
Small code size for decompression: about 5 KB
Supports multi-threading and P4’s hyper-threading
Whats New:
7-Zip now supports new optional match finders for LZMA/LZMA2 compression: bt5 and hc5, that can work faster than bt4 and hc4 match finders for the data with big redundancy.
The compression ratio was improved for Fast and Fastest compression levels with the following default settings:
Fastest level (-mx1) : hc5 match finder with 256 KB dictionary.
Fast level (-mx3) : hc5 match finder with 4 MB dictionary.
Minor speed optimizations in multithreaded LZMA/LZMA2 compression for Normal/Maximum/Ultra compression levels.
bzip2 decoding code was updated to support bzip2 archives, created by lbzip2 program.
Some bugs were fixed.
New localization: Turkmen.

a-al7b.com-By-sasa2010

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