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软件工程导论的题目,6) There are eight 1bit full adder integrated circ

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软件工程导论的题目,
6) There are eight 1bit full adder integrated circuits.Combine them to 8bit adder circuit using the following box diagram
7) Logical binary operations can be used to modify bit pattern.Such as
(X8X7X6X5X4X3X2X1)2 and (00001111)2 = (0000X4X3X2X1)2
We called that (00001111)2 is a mask which only makes low 4 bits to work.
Fill the follow expression
(1) (X8X7X6X5X4X3X2X1)2 or (00001111)2 = ( )2
(2) (X8X7X6X5X4X3X2X1)2 xor (00001111)2 = ( )2
(3) ((X8X7X6X5X4X3X2X1)2 and (11110000)2 )
or (not (X8X7X6X5X4X3X2X1)2 and (00001111)2) = ( )2
8) List components of the von Neumann architecture machine.
哇塞,真难.