56. Which of the following is NOT essential for a time-sharing operating system?
(A) Interrupt vectors
(B) Privileged instructions
(C) Memory protection
(D) Virtual memory
(E) Dual mode processor state
詳解 (共 2 筆)
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這道題目詢問哪一項不是分時作業系統(ti...
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以下哪項對於一個分時作業系統並非必要?(...