In this video, classification of software with respect to licensing whether free or proprietary is done in detail. Free and open-source software features are discussed in detail. Another category based on distribution, shareware and freeware are also discussed in detail. A lesser known term, Humanware / liveware is also introduced in this video. Various designations related to Computer science and applications with a brief description of jobs are also given in this video. Important questions of this chapter is listed with priority indicators . Useful for the students of both computer science and computer applications of first year course of Higher secondary. Also useful for computer enthusiasts.