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- .. ARC info kit -- cover sheet
- .. To be printed in 10 pitch on letterhead.
- ..
- .x:6
- .xt:10
- ARC
-
- File Archive Utility
- Version 5.20
-
-
- (C) COPYRIGHT 1985,86,87 by System Enhancement Associates, Inc.
- ALL RIGHTS RESERVED
-
-
- ARC is used to create and maintain file archives. An archive is a
- group of files collected together into one file in such a way that the
- individual files may be recovered intact. ARC is different from other
- archive and library utilities in that it automatically compresses the
- files being archived, so that the resulting archive takes up a minimum
- amount of space.
-
- When ARC is used to add a file to an archive it analyzes the file to
- determine which of three storage methods will result in the greatest
- savings. Since one of the three methods involves no compression at
- all, the resulting archive entry will never be larger than the
- original file.
-
- ARC provides a full range of functions for archive creation and
- maintenance. ARC also provides password encryption to protect your
- data from unauthorized use.
-
- While the exact degree of compression achieved will vary depending on
- the contents of any given file, typical compression rates are as
- follows:
-
- Program (.EXE and .COM) files 20% to 30%
- ASCII text and documents 50% to 60%
- Spreadsheets 50% to 90%
-
- ARC calculates a cyclical redundancy check (CRC) on every file it puts
- in an archive, and recalculates it whenever a file is extracted. This
- helps to ensure data integrity when archives are transmitted over
- telephone lines.
-
- A program disk with printed documentation is available for $50 from:
-
- System Enhancement Associates, Inc.
- 21 New Street, Wayne NJ 07470
-
- or by phone at (201) 473-5153 (Visa and MasterCard accepted). If ARC
- is obtained by other means, then it may not be used in a commercial
- environment or a governmental organization without payment of a $35
- license fee. Site licenses and commercial distribution licenses are
- available. Full program sources are also available.
-