A brief history of touchscreen technology

Great article by arstechnica: From touch displays to the Surface: A brief history of touchscreen technology


Will computers grade exams in the future?

The article Essay-Grading Software Offers Professors a Break in the NYT seems to suggest it.

EdX is a not-for-profit enterprise of its founding partners Harvard University and the Massachusetts Institute of Technology that features learning designed specifically for interactive study via the web.

According to the NYT they have developed a software using Artificial Intelligence providing a grade instantly after uploading an exam.