Diff of Parametron

• The added line is THIS COLOR.
• The deleted line is THIS COLOR.
• Go to Parametron.

- パラメトロン計算機PC-1
--  http://www.s.u-tokyo.ac.jp/ja/story/newsletter/treasure/05.html
- 黎明期のコンピュータ >  パラメトロン
--  http://museum.ipsj.or.jp/computer/dawn/0007.html