Red Bar: Red bar indicates that the number of students in the first year of an institution has opted for Macintosh operating system in their computers, it is clear from the graph that Macintosh is the most preferred operating system amongst students. There are about more than 700 students who have opted for Macintosh Operating systems.
Green Bar: Green bar indicates the number of students in the first year of an institution who have opted for Windows as the operating system for their computers. Windows stands as a second choice amongst students as compared to Macintosh. Nearly 500 students have opted for Windows as compared to 700 students who opted for Macintosh.
Blue bar: As it is seen in the graph the blue bar is the smallest and has very little choice. The blue bar stands for other operating systems than Macintosh and Windows. Not even 10 students have opted for other Operating systems. This may be due to the functionality and popularity of the operating system.