ABSTRACT
It is a truism that computers have become ubiquitous and portable in the modern world: Personal Digital Assistants, as well as many various kinds of mobile computing devices are easily available at low cost. This is also true because of the ever increasing presence of the Wide World Web connectivity. One should not forget, however, that these life changing applications have only been made possible by the phenomenal
advances that have been made in device fabrication and more importantly in the architecting of these individual components into powerful systems.
