Design and construction 129 Logic circuits 121 Data processing 41 Logic design 31 VHDL (Computer hardware description language) 24 Computer-aided design 23 Digital electronics 19 Verilog (Computer hardware description language) 16 Computer simulation 12 Logic programming 11 Electronic digital computers 10 Field programmable gate arrays 10 Metal oxide semiconductors, Complementary 9 Circuits 8 Computer organization 7 Programmable logic devices 5 Electronic controllers 4 Integrated circuits 4 Programmable controllers 4 Very large scale integration 4 Digital integrated circuits 3 Laboratory manuals 3 Bipolar integrated circuits 2 Computer programs 2 Digital techniques 2 Experiments 2 Logic circuit 2 Metal oxide semiconductors 2 Microprocessors 2 Process control 2