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_ebook__rtl_hardware_design_using_vhdl_apr_2006__wiley_ieee_press___chapter_1___2__1562CHAPTER1INTRODUCTIONTODIGITALSYSTEMDESIGNDevelopingandproducingadigitalsystemisacomplicatedprocessandinvolvesmanytasks.Thedesignandsynthesisofaregistertransferlevelcircuit,whichisthefocusofthisbook,isonlyoneofthetasks.Inthischapter,wepresentanoverviewofdevicetechnologies,systemrepresentation,developmentflowandsoftwaretools.Thishelpsustobetterunderstandtheroleofthedesignandsynthesistaskintheoveralldevelopmentandproductionprocess.1.1INTRODUCTIONDigitalhardwarehasexperienceddrasticexpansionandimprovementinthepast40years.Sinceitsintroduction,thenumberoftransistorsinasinglechiphasgrownexponentially,andasiliconchipnowroutinelycontainshundredsofthousandsorevenhundredsofmi……