Title:			LZWBACKUP
Author:			Ian Prideaux (i-pridea@csd.uwe.ac.uk)
Version:		1.0
Title From:		Documentation
Author From:		Documentation
Version From:		Documentation
Supplier:		Ian Prideaux (i-pridea@csd.uwe.ac.uk)
Date:			20/11/94
Keywords:		Back up programs ; File compressors
Shareware:		No
Machine:		Archimedes
Operating system:	RISCOS
Memory requirements:	
Peripherals needed:	
Other s/ware needed:	
Directory:		micros/arch/riscos/c175
Date mounted/updated:	06/12/94
File names:		lzwbackup.arc
Unarchived files:	32
Unarchived size:	201 kbytes
Omissions:		
See also:		HDBACKUP (c171), KEEPER (b039), BACKUP3 (a163), BACKUP (a055)

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Acquiring the package:

Download the archive file(s) and extract using SparkPlug 2
(see the "tools_help" file in micros/arch/riscos/tools for further info).


Description:

LZWBackup makes a backup of files from a hard disc onto floppy discs.  It
creates one file on each floppy, and stores compressed versions of the files
to be backed up.  This should take fewer floppies to back up a given number
of files because:
a) most files get 30% ish knocked off them by the compression.
b) compressed files are concatenated into one file, hence there are no cluster
   losses i.e. a 700 byte file takes up a whole 1Kb sector, hence wasting the
   other 300 bytes.
c) directories (if stored at all) are stored by name only, hence do not take up
   a sector to themselves.
The compression routine is implemented by John Kortink's LZW module, both
versions and the documentation are included.

LZWrestor will list the contents of a floppy and restore the entire contents
of the floppy to their original place in the directory structure. It is
incapable of selecting files from the floppy or of specifying where they go
(This is a couple of things that may change in a later version).