110850     FC: A File Compression Utility  Version: May 1986
 
Author: Ted Dustman, V.A. Medical Center, Salt Lake City, UT
 
Submitted by: Robert Dustman, V.A. Medical Center, Salt Lake City, UT
 
Operating System: RT-11 V4, TSX-PLUS V5  Source Language: C  Memory
Required: 18KB  Keywords: File Management
 
Abstract: FC is a program designed to compress and decompress text
files.  It is not another "squeeze" program; it actually
reduces the size of text files from 35% to 50%.  The
compressed text file cannot be edited of course; its use is
for archival purposes or for transmission to other computers
via modem.  The program is ineffective on small files (say
one block long).  It implements Huffman's variable
length code algorithm for compressing text.  The program is,
unfortunately, somewhat slow.  It takes about two minutes for
it to compress a file 110 blocks long running on a
PDP-11/23+ with RL02 disks.  Decompression takes less time.
 
Restrictions: Compresses only text files.
 
Media (Service Charge Code): One RX01 Diskette (KA)  Format: RT-11,
600' Magnetic Tape (MA)  Format: RT-11