what is virtual-reality system

                      Virtual-Reality System Aims to Enliven Education

        Students using Google Expeditions, via a cardboard viewer and a smartphone, at Bronx Latin High School in New York.

              The introduction of Google’s virtual-reality kits for classrooms highlights the growing importance of the education sector to major technology companies — and the mounting competition among them. In 2006, for instance, Google introduced Apps for Education, a bundle of cloud-based email, calendar and document-sharing products available free to schools.

Now, 45 million students and teachers around the world use the apps, the company said. Microsoft has also developed a substantial school audience for its email, search, calendar, Skype and other software. This month, Microsoft introduced several new products for education customers, including a note-taking app called One Note Class Notebook.