Labels:book | daily | hakham | reckoner | sky OCR: COMPUTER SOFTWARE 149 Are all software licenses similar? From legal perspective, there are two categories of software: public domain and proprietary. Public domain software not protected by copyright because the copyright has expired, or the author has placed the program in the public domain, making avail able without restriction. Public domain software may be freely copied, distributed and even resold The primary restriction on public domain soft- ware that you are not allowed to apply for copyright on it Proprietary software has restrictions on its use that are delineated by copyright, patents or license agreements Some proprietary software is dis- tributed commercially, whereas some of it is free. Based on licensing rights proprietary software is distributed as commercial software demow ...
