Data processing 33 Design and construction 33 Digital integrated circuits 33 VHDL (Computer hardware description language) 14 Computer-aided design 8 Digital electronics 6 Abstraction 3 Logic circuits 3 Computer simulation 2 Parallel processing (Electronic computers) 2 SPARK (Electronic resource) 2 System design 2 VHDL (Computer hardware discription language) 2 LogicWorks 1 Low voltage integrated circuits 1 Metal oxcide semiconductors, Complementary 1 Systemd design 1 VHDL (Hardware description language) 1