Transcription of Introduction to programming - unibz
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Introduction to programming - unibz
Unit 1 Introduction to programmingSummary Architecture of a computer programming languages Program = objects + operations First Java program Writing, compiling, and executing a program Program What is a computer? Hardware Processor Memory I/O units How does it work? Executes very simple instructions Executes them incredibly fast Must be programmed: it is the software, , the programs, that characterize what a computeractually Components of a computer12 UNIT Simplified architecture of a computerModemI/O portscontrollerDiskCentralmemoryCPUV ideocardSoundcardNetworkadapterKeyboardM ousePrinterHard diskFloppy diskCD ROM/DVDM onitorMicrophoneSpeakersOther Languages for programming a computer Machine language21 40 16 100 163 240 Assembler languageiload intRatebipush 100if_icmpgt intError High level programming languagesif (intRate > 100).
Introduction to programming 3 1.7 Representation of the domain: objects • group objects of the same type into classes • establish the relations between the classes, i.e., how the objects of the different classes are connected to each other • establish the properties of the objects belonging to each class • realize the classes, the relationships between the classes, and the properties ...
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