A NuFX archive is an
archive file format
In computing, an archive file is a computer file that is composed of one or more files along with metadata. Archive files are used to collect multiple data files together into a single file for easier portability and storage, or simply to compr ...
that supports
lossless data compression
Lossless compression is a class of data compression that allows the original data to be perfectly reconstructed from the compressed data with no loss of information. Lossless compression is possible because most real-world data exhibits statist ...
. It is usually given the file extension ''SHK''; ''SDK'' may also be used to specify that the archive describes the entire contents of a disk.
History
Andy E. Nicholas designed the format as an improved replacement for the
Binary II (.BNY) format, adding compression. He introduced it alongside a
pkzip
PKZIP is a file archiving computer program, notable for introducing the popular ZIP file format. PKZIP was first introduced for MS-DOS on the IBM-PC compatible platform in 1989. Since then versions have been released for a number of other a ...
-like program called ShrinkIt for
Apple II
The Apple II (stylized as ) is an 8-bit home computer and one of the world's first highly successful mass-produced microcomputer products. It was designed primarily by Steve Wozniak; Jerry Manock developed the design of Apple II's foam-mold ...
systems, which he later migrated to the
Apple IIGS
The Apple IIGS (styled as II), the fifth and most powerful of the Apple II family, is a 16-bit personal computer produced by Apple Computer. While featuring the Macintosh look and feel, and resolution and color similar to the Amiga and Atari S ...
as GS-Shrinkit.
The specification was republished by Apple in its File Type Notes.
See also
*
Comparison of file archivers
The following tables compare general and technical information for a number of file archivers. Please see the individual products' articles for further information. They are neither all-inclusive nor are some entries necessarily up to date. Unless ...
*
Comparison of archive formats
This is a list of file formats used by archivers and compressors used to create archive files.
Archiving only
Compression only
Archiving and compression
Data recovery
Comparison Containers and compression
Notes
While the original ...
*
List of archive formats
This is a list of file formats used by archivers and compressors used to create archive files.
Archiving only
Compression only
Archiving and compression
Data recovery
Comparison Containers and compression
Notes
While the original ...
*
LZW
References
{{Archive formats
Archive formats