Exercise: Suppose we have six computers, 2 computers have Floating-point arithmetic unit, 5 computers have Magnetic disk memory, and 3 computers have Graphic display terminal. The Six Computers specifications are showed as follows:

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Computer Floating-point arithmetic unit Magnetic disk memory Graphic display terminal

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I Yes Yes No

II Yes Yes Yes

III No No No

IV No Yes Yes

V No Yes No

VI No Yes Yes

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