problem 1: Describe the subtypes with illustrations which are used in VHDL.

problem 2: What is the key difference between sequential and combinational circuits?

problem 3: Design BCD to Excess-3 code convertor, by using minimum number of NAND gates.

problem 4: Describe the Physical types with illustrations which are used in VHDL.

problem 5: Describe the Difference between array and records types.

problem 6: What do you meant by the term operator overloading? Give an illustration.

problem 7: What is the difference between function and process in VHDL? Give appropriate illustrations.

problem 8: Describe the use of function as a type conversion function.

problem 9: prepare down the truth table, entity declaration and behavioral/data-flow architecture for the Encoder. As well draw the circuit and output waveforms.

problem 10: prepare down the truth table, entity declaration and behavioral/data-flow architecture for the Comparator. As well draw the circuit and output waveforms.