Digital Representation Digital is an abstraction of analog voltage Voltage is a continuous, physical unit Typically ranging from 0 to 5 volts on PCs Digital logic abstracts it to 2 distinct levels “1” or positive (typically V or greater) “0” or negative (typically less than 1 volt) Eases design and manufacturing | Computer Architecture Nguyễn Trí Thành Information Systems Department Faculty of Technology College of Technology ntthanh@ 9 15 2011 1 Fundamentals 9 15 2011 2 Boolean Algebra 9 15 2011
