Can computers become alive?

Before my research i believe that computers could become alive to an extent.. if not become better "humans". My opinion is that I think you could preduce a computer "human" who looked, acted, and did what a human would do however i dont think they could necessarily make all the correct decisions by tone of voice or sarcasm or other variables.....

After my research i have found
"Among living entities, only man has the ability to conceptualize, an ability by which be can grasp the abstractions memory, learning, and concept, either approximately, by intuition, or fully with scientific knowledge and objective epistemology."

my source:  http://www.airpower.maxwell.af.mil/airchronicles/aureview/1976/may-jun/huggins.html
more sources: http://brownzings.blogspot.com/2006/11/are-computers-alive.html
more sources: http://justdoingsomethinking.blogspot.com/2008/03/are-computers-alive.html   the following is what they said.. it was interesting to me.. 
"They say that computers aren't alive, but they can be killed. They say that computers aren't alive, but they act in strange unexplainable ways."