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- Commentary by Alex Janssen
-
- NOTE: The following is probably political and opinionated
-
- NEW SOFTWARE TECHNOLOGY ?
-
- Apparently many people across the U.S. have begun using Phil
- Katz's new file compression programs that use the ZIP file
- extension. I had read and heard a lot about them, so I obtained
- a copy from GENIE to find out what was so much better than
- programs using the ARC file extension.
-
- To my surprise there was one minor improvement and five major
- improvements. The minor improvement was speed. Every developer
- always improves this feature at some time or other. The major
- improvements will provide much more user service than can be had
- by previous programs of this nature. In no particular order they
- are as follows.
-
- A listing of the contents of a compressed file library
- can now be had in order by File Name, File Size, File
- Date, or File Compression Ratio. A very useful feature
- for locating by name, the smallest or largest, or the
- most recently updated files. Sorting the listing by
- compression ratio is useful in optimizing your
- compression techniques, but otherwise, I may not use it
- very often. The capability to control the listing order
- in itself may well be the most appreciated enhancement in
- this new release.
-
- Searching multiple compressed libraries with PKUNZIP from
- one command line via use of DOS wild card conventions in
- the specified ZIP file name is another, like the above
- mentioned, very serviceable enhancement. This one will
- save a lot of time for those of you maintaining many
- compressed libraries.
-
- Control over the compression method is limited but much
- more is offered than other programs of this type. With
- selection of the type of compression method either
- automatic or manual, you can really put the squeeze on
- your files with what is referred to as "extra compression
- known as Reducing".
-
- Multiple directories may be packed away in one compressed
- file library with the full path name stored with each
- file. When they are subsequently unpacked the
- directories may be optionally restored with the
- appropriate files in them. An excellent backup method or
- to move an application from your fixed disk to floppies
- temporarily to allow room for something else.
-
- Soon, spanning multiple disks with one compressed library
- file is to be possible. Is this to be a new backup
- program for the "poor man"? I was disappointed that this
- was not implemented in the current version. This reeks
- of vaporware, but hopefully Phil Katz will come through
- with this excellent sounding feature.
-
- Better compression capability is more evident when you have a low
- number of relatively large files to pack away as apposed to a
- large number of small files. The extra header information stored
- with each file in the new ZIP format is apparently the cause of
- this larger resulting compressed file library. Users may tend to
- overlook this seeming drawback when the other new features come
- to mind. And you know, it is damn nice of Phil Katz to include
- the file structure with the program documentation, for what it's
- worth.
-
- All of the above plus the un-mentioned added security and error
- recovery features mentioned in the documentation add up to a much
- better and safer to use set of file compression utilities than we
- have had before. Phil Katz has produced a really excellent set
- of file archiveal storage and retrieval programs.
-
- SEA's ARC program was excellent in its time. Its time has passed
- now. Every one should be moving up to the technological advances
- made in the new ZIP format.
-
- -Commentary by Alex Janssen
- GENIE a.janssen1
-