For more on the background out of which this was developed see: _Thinkpad: A Different Shade of Blue_ by Deborah A. Dell and J. Gerry Purdy https://www.goodre

For more on the background out of which this was developed see: _Thinkpad: A Different Shade of Blue_ by Deborah A. Dell and J. Gerry Purdy https://www.goodreads.com/book/show/483933.ThinkPad https://www.goodreads.com/book/show/483933.ThinkPad