00301nam a2200109Ia 4500008004100000041001200041082001100053100001300064245010200077260000600179650000600185221030s9999    xx            000 0 und d  aEnglish  a105.23  aJ. Gregg 0aOnes &  Zeros - Understanding Boolean Algebra, Digital Circuits, & the Logic of setscby J. Gregg  c0  aB