====== Quiz ======
<quizlib id="quizvhdloverview" rightanswers="[['a1','a2'],['a2'],['a2']]" submit="Check answers">
<question title="VHDL..." type="checkbox"> ...can only be used for hardware description. | ...can also be used for programming software. | ...is both machine readable and human readable. </question>
<question title="Abstraction..." type="checkbox"> ...works only top-down | ...prevents users from writing effective VHDL code | neither of them</question>
<question title="Concurrency..." type="checkbox"> ...is not possible in real hardware, because computers process their programms sequentially | ...is not possible over several layers of abstraction or hierarchy | neither of them</question>
</quizlib>