This course introduces the basic concepts in information technology and explores the many applications of information technology in our daily life from consumer electronics to internet to various sectors including medicine, business, and social networking, etc. Key technology breakthroughs throughout the development of information technology and its impact to various aspect of our society will be studied. These include the invention of the 1st transistor, concept of computing machine, representation of information in digital formats, miniaturization via VLSI technology, electronic communications from emails, mobile phones, sms, to video skype, imaging technologies in medical field, internet and social networking, image and video technology and websites like youtube, etc. The focus is to identify the key technological advances in information technology and understand how these advances led to revolutionary changes in our life and society.