human-computer interaction

we holded the midterm examination in last class(04.18.2008).
Do you know that people often interact with media technologies as though the technologies were people ? Our technologies have developed since long time ago, and media technologies became more complicated. So it would be needed to interact between human and machines as thouh machines made by human.At first, people made a mouse, keyboard, monitor, printer and tried to improve that. but today, people try to make a new tool. For example, touch screen, percieving finger print or eye, incognizing voice or moving, webcam. The new tool even considerated ergonomic. So now we can interact with computer more efficient and fast.it is really possible interacts with computer? before discussing that, we have to know What is the Ethnomethodology. How do people make sense of the world? someone says that we use the documentary method. but Ethnomethodology differs from other sociological perspectives in one very important respect. Ethnomethodologists asuume that social order is illusory. They believe that social life merely appears to be orderly; in reality it is potentially chaotic.We believe that we really interact other people. but is it fact? just we believe that they understand I said. It may happen that other people are understanding with another method.Also in Human-Computer. We cannot see the computer understand our said. just we believe it. it may all thing is illusory.