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OCR: Chapter Getting Started programs that are modular in nature, readable and easily modified Programs with these properties usually consist of many short subprograms. Each subprogram performs one task necessary to the program. Several related subprograms might be coll lected in file The subprograms in each file can be tested, debugged and compiled separately Separate compilation of source code files can be time- -saving feature because change made to one file does not require recompiling the whole pro gram Also choosing the subprograms in each file carefully makes program mod ification easier. Suppose program must be modified because of a hardware change If all the code that 15 dependent on the hardware in question were in one file, then modifi- cations could be limited to that one file. In c ...