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OCR: Third Edition The operating system may look at the value returned by a program and take action based on that value In the age of Graphical User Interfaces GUI's) and Integrated Development Environments (IDE's), that fact often gets lost. Yet computer science students should ultimately be prepared to program with or without an IDE and understand the basic concepts of communication between programs. This change from void ma in( void int void doos not make major change in the discussions in the text However, the return valuc appears in every program as gentle reminder that programs interact with their environments Chapter has been reworked. The discussion of arrays now precedes the dis- cussion of pointers. This change was made in response to both students and teach- ers who have indicated th ...