menu horizontal-vertical-hierarchical
Vertical-vertical-hierarchical menus appeared for first time on October 12th, 1988, with the release of NeXTSTEP 0.8 (the operating system for Steve Jobs' NeXT computer) and introduced the idea of a vertical menu strip in the upper left-hand corner, which could also be "torn off" at any point so that the user could create specific menusan plave them anywhere in the screen (A behavior still practiced on the toolbar’s of Adobe products).
Resources:
http://www.guidebookgallery.org
http://toastytech.com/guis/index.html
http://www.operating-system.org
