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The different paging techniques are
1. Multilevel paging or hierarchical paging method: In definite cases the page table may consist up to 1 million entries. This would be as well large to accommodate in the main memory. One simple solution with this problem is to divide the page table into smaller pieces.
2. Hashed page table method: A general method for handling address spaces larger than 32 bits is to use a hashed page table with the hash value being the virtual page number. Every entry in the hash table contains a linked list of elements that hash to the same location.
3. Inverted page table method: An inverted page table has one entry for every real page of memory. Every entry consists of the virtual address of the page stored in threat real memory location, along with information about the process that owns that page.
4. Shared pages method: Shared page tables are typically implemented as multiple virtual addresses that are mapped to one physical address.
5. Demand paging method: This is alike to a paging system with swapping. Processes inhabit on the secondary memory. When we would like to execute a process, we swap it in to the memory.
Paging: Only the needed memory pages are moved to main memory from the swap machine for execution. Process size does not matter. Produce the concept of the virtual memory. It
Now we consider the following questions: how can the parent process communicate with its child? Or how can children processes communicate with other children? The exact answer depe
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Explain thread in details
What is paging? Paging is a memory management scheme that authorizes the physical-address space of a process to be noncontiguous. Paging evades the considerable problem of fi
Swapping : Whole process is moved from the swap machine to the main memory for execution. Process size must be equal or less than to the used main memory. It is easier to exe
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Describe paging technique used in UNIX systems. When a process begin in UNIX, not every its memory pages are read in from the disk at once. In its place, the kernel loads into
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