Product Evolution Bibliography

http://en.wikipedia.org/wiki/Typewriter

http://www.generousbeginnings.com/Haris/konrad.jpg

http://site.xavier.edu/polt/typewriters/underwood5small.jpg

http://library.albany.edu/usered/webeval/images/computer.gif

http://en.wikipedia.org/wiki/ENIAC

http://www.tech-styling.com/wp-content/nec-monitor.jpg