enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. bzip2 - Wikipedia

   en.wikipedia.org/wiki/Bzip2

   Yes. bzip2 is a free and open-source file compression program that uses the Burrows–Wheeler algorithm. It only compresses single files and is not a file archiver. It relies on separate external utilities for tasks such as handling multiple files, encryption, and archive-splitting. bzip2 was initially released in 1996 by Julian Seward.

3. Data compression - Wikipedia

   en.wikipedia.org/wiki/Data_compression

   Data compression. In information theory, data compression, source coding, [1] or bit-rate reduction is the process of encoding information using fewer bits than the original representation. [2] Any particular compression is either lossy or lossless. Lossless compression reduces bits by identifying and eliminating statistical redundancy.

4. List of archive formats - Wikipedia

   en.wikipedia.org/wiki/List_of_archive_formats

   Unix-like. RPM files consist of metadata concatenated with (usually) a cpio archive. Newer RPM systems also support other archives, as cpio is becoming obsolete. cpio is also used with initramfs. .shar. application/x-shar. Shell archive. Unix-like. A self-extracting archive that uses the Bourne shell (sh). .LBR.

5. 7z - Wikipedia

   en.wikipedia.org/wiki/7z

   7z is a compressed archive file format that supports several different data compression, encryption and pre-processing algorithms. The 7z format initially appeared as implemented by the 7-Zip archiver. The 7-Zip program is publicly available under the terms of the GNU Lesser General Public License.

6. Data compression ratio - Wikipedia

   en.wikipedia.org/wiki/Data_compression_ratio

   Definition. Data compression ratio is defined as the ratio between the uncompressed size and compressed size: [1][2][3][4][5] Thus, a representation that compresses a file's storage size from 10 MB to 2 MB has a compression ratio of 10/2 = 5, often notated as an explicit ratio, 5:1 (read "five" to "one"), or as an implicit ratio, 5/1.

7. RAR (file format) - Wikipedia

   en.wikipedia.org/wiki/RAR_(file_format)

   The RAR file format revision history: 1.3 – the first public version, does not have the "Rar!" signature. 1.5 – changes are not known. 2.0 – released with WinRAR 2.0 and Rar for MS-DOS 2.0; features the following changes: Multimedia compression for true color bitmap images and uncompressed audio. Up to 1 MB compression dictionary.