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ALL meanings of paging

pag·ing
P p
  • noun paging computing: memory transfer 1
  • noun paging contact via a pager 1
  • noun Technical meaning of paging (operating system)   A technique for increasing the memory space available by moving infrequently-used parts of a program's working memory from RAM to a secondary storage medium, usually hard {disk. The unit of transfer is called a page. A memory management unit (MMU) monitors accesses to memory and splits each address into a page number (the most significant bits) and an offset within that page (the lower bits). It then looks up the page number in its page table. The page may be marked as paged in or paged out. If it is paged in then the memory access can proceed after translating the virtual address to a physical address. If the requested page is paged out then space must be made for it by paging out some other page, i.e. copying it to disk. The requested page is then located on the area of the disk allocated for "swap space" and is read back into RAM. The page table is updated to indicate that the page is paged in and its physical address recorded. The MMU also records whether a page has been modified since it was last paged in. If it has not been modified then there is no need to copy it back to disk and the space can be reused immediately. Paging allows the total memory requirements of all running tasks (possibly just one) to exceed the amount of physical memory, whereas swapping simply allows multiple processes to run concurrently, so long as each process on its own fits within physical memory. 1
  • noun paging a boy servant or attendant. 1
  • noun paging a youth in attendance on a person of rank or, in medieval times, a youth being trained for knighthood. 1
  • noun paging an attendant or employee, usually in uniform, who carries messages, ushers guests, runs errands, etc. 1
  • noun paging a person employed by a legislature to carry messages and run errands for the members, as in the U.S. Congress. 1
  • verb with object paging to summon formally by calling out the name of repeatedly: He had his father paged in the hotel lobby. 1
  • verb with object paging to summon or alert by electronic pager. 1
  • verb with object paging to control (an electrical appliance, machine, etc.) remotely by means of an electronic signal. 1
  • verb with object paging to attend as a page. 1
  • idioms paging on the same page, Informal. (of two or more people) having a similar understanding or way of thinking: Parents should be on the same page about raising their children. 1
  • noun paging the transfer of pages of data between the main memory of a computer and its auxiliary memory 0
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