Wang IN/ix
 ==========

 This was my first UNIX system, I was given a "Workstation"
 with IN/ix in the mid to late 80s.

 This was a 16bit full UNIX based upon Interactive UNIX.
 I thought it was great and learned a lot by using it.

 It was a pretty neat system, max memory was 1M and you could
 do a lot with the system.  For example, what follows is one
 Item I prototyped on IN/ix.  Developing and testing C on a
 Wang VS was rather tough to do.

 I decided to prototype create a multi-level BOM explosion
 prototype in C.  I did this to learn C and UNIX, at that time
 I started to realize this prototype could benefit the Standard
 Cost Process.

 Afterwards I used it to replace the current explosion on the
 Wang VS, this greatly reduced execution speed.  The old version
 could take 3+ days to do a full explosion of all products for
 re-costing, the c version took 3 hours.  It was so fast me
 and others could not believe it.  So we did a many parallel
 tests and compared the results to be sure it was working.

 The main reason for the big performance increase was c
 recursion, you could easily walk the BOM tree without a big
 memory foot print.  In COBOL, without recursion, lots of
 memory and logic was spent trying to find the next component.
 Some BOMs were over 5 levels deep. Also one more thing, after
 a day or two, it was common for the old COBOL Program to crash
 on memory.

 $Id: inix.txt,v 1.3 2024/10/13 15:28:36 jmccue Exp $