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What is segmented page allocation?

Segmented page allocation is a type of memory management that uses base and bound registers to determine memory faults, similar to dynamic page allocation. More importantly it is different to dynamic page allocation since the entire process doesn't have to be in memory, similar to using virtual memory paging where the program is broken into pieces. Unlike virtual memory paging, the maximum virtual memory size is limited to the size of physical memory.


What is paging?

Paging is a memory management scheme, in which data is fetched from the disk to memory in the form of equal size blocks called pages.paging is a method for allowing the non-contiguous allocation of memory space to processes when nedded.


The technique of swapping items between memory and storage?

It is paging.


What is contiguous allocation?

Paging is a memory management scheme that permits the physical- address space of process to be noncontiguous.


What are the recent memory management schemes?

Single-user contiguous Fixed Partitions Dynamic Partitions Relocatable Dynamic Partitions Paged Memory Allocation Demand Paging Working Set Segmented Memory Allocation Segmented/Demand Page Memory Allocation -------Taken from "Understanding Operating Systems. 6th edition pg 99


What are the differences between simple paging and virtual memory paging?

In case of simple paging all pages should be in main memory to run a process..while in case of virtual memory paging pages can be loaded as needed by the processor i.e. called demand paging...


Why are segmentiation and paging sometimes combined into one scheme?

Segmentation and paging are combined in a scheme called Segmented Paging to leverage the benefits of both techniques. This allows for efficient management of memory by dividing it into segments based on logical partitions and further dividing those segments into pages for optimized memory utilization and protection. Segmenting helps in managing variable-sized data structures, while paging streamlines memory allocation and reduces fragmentation. By combining these two strategies, Segmented Paging enhances memory management and provides more flexibility in handling memory access and protection.


What is difference between demand paging n pure demand paging?

In demand paging, a page is not loaded into main memory until it is needed. In pure demand paging, even a single page is not loaded into memory initially. Hence pure demand paging causes a page fault. Page fault, the situation in which the page is not available whenever a processor needs to execute it.


What difference between paging?

Difference between paging and what?


In paging how the virtual memory can be implemented?

its depends on number of processes in memory.


What is memory management scheme which support the user's view of memory?

paging


What is a memory characteristic where an application can request a specific item from memory?

Demand Paging