For two decades, user input devices typically comprised a keyboard and a mouse. This left computers virtually "blind" to the world. A whole new class of devices has now changed this. Read Wired.com's article How Context-Aware Computing Will Make Gadgets Smarter ( https://bit.ly/av0V7w ) and answer the following questions:
a. What additional context-sensitive inputs are computing devices now able to acquire automatically?
b. Briefly explain the difference between "hardsensing" and "soft-sensing." Provide an example of each. Could u answer these two question by 75 ~150 words?