Japanese Character Sets....

I came across this document while searching old backup drives, and it turns out the link where I got it still works.  This document is a downloadable appendix to a huge, thick paperback book about the computerization of Asia writing systems I found for $1 at a used book store years ago.  I threw the book in the garbage a long time ago but did keep the downloaded files.  I thought I'd pass the link along in case it's of use to someone.  The book was kind of interesting to flip through but I didn't actually use it for anything myself.

Here's the root directory with links to the other Appendices about Chinese characters (e.g., computer code as it relates to Taiwan, Korea etc.):
Edited: 2017-07-16, 2:33 am
This material is from CJKV Information Processing by Ken Lunde.

There are a lot of character encodings around, and this book helps explain where they came from and how they evolved. If you ever wanted to know why Unicode has CJK Compatibility Ideographs, this book is for you.

Most of the information is not too important for text processing in a pure Unicode environment. There are no secrets for kanji learners.