A system contains three programs and each requires three tape units for its operation. The minimum number of tape units which the system must have such that deadlocks never arise is _________.

A system contains three programs and each requires three tape units fo

1.	A system contains three programs and each requires three tape units for its operation. The minimum number of tape units which the system must have such that deadlocks never arise is _________.
A.	6
B.	7
C.	8
D.	9
Answer» C. 8

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