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单词 Virtual Page
释义

Virtual Page

原声例句
202327

With some you can even write in the margins and turn down the corners of the virtual pages.

对于某些内容,您甚至可以在页边空白处书写并将虚拟页面的角调低。

英语百科

Page (computer memory)

(重定向自Virtual Page)

A page, memory page, or virtual page is a fixed-length contiguous block of virtual memory, described by a single entry in the page table. It is the smallest unit of data for memory management in a virtual memory operating system.

Virtual memory allows a page that does not currently reside in main memory to be addressed and used. If a program tries to access a location in such a page, an exception called a page fault is generated. The hardware or operating system is notified and loads the required page from the auxiliary store (hard disk) automatically. A program addressing the memory has no knowledge of a page fault or a process following it. Thus a program can address more (virtual) RAM than physically exists in the computer. Virtual memory is a scheme that gives users the illusion of working with a large block of contiguous memory space (perhaps even larger than real memory), when in actuality most of their work is on auxiliary storage (disk). Fixed-size blocks (pages) or variable-size blocks of the job are read into main memory as needed.

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更新时间:2025/6/19 12:40:32