0
(frame no * page size) + offset value = physical add
where
frame value is the value present in the corresponding page number
offset value is the last n bits of the logical address
page no is the first m-n bits of logical address
2^m is the logical address
2^n is the page size
What else can I help you with?
Why paging is used?
Paging is solution to external fragmentation problem whichis to permit the logical address space of a process to benoncontiguous, thus allowing a process to be allocatingphysical memory wherever the latter is available.
Why paging used?
Paging is solution to external fragmentation problem whichis to permit the logical address space of a process to benoncontiguous, thus allowing a process to be allocatingphysical memory wherever the latter is available.
What is contiguous allocation?
Paging is a memory management scheme that permits the physical- address space of process to be noncontiguous.
How Intel Pentium supports segmentation and paging?
The Intel Pentium supports pure segmentation and segmentation with paging. The processor creates logical addresses, which are mapped to physical addresses by the segmentation unit. Those addresses may point to physical addresses within memory or paged swap space.
What is paging and segmentation in an operating system?
Paging refers to the division of address spaces into fixed size units and the logical addresses are in the form of tuples. On the other hand, segmentation is the dividing of address spaces into a defined number of segments.
What is paging and how is it done?
Paging is a memory management scheme in which physical memory is divided into fixed-size blocks called pages, and logical memory is divided into blocks of the same size called frames. The operating system uses a page table to map logical addresses to physical addresses during memory access. When a process requests data that is not in physical memory, a page fault occurs, leading to the system retrieving the required page from secondary storage into physical memory.
How do you calculate paging address?
To calculate a paging address, you need to divide the virtual address into two parts: the page number and the offset. The page number is obtained by dividing the virtual address by the page size, while the offset is found by taking the modulus of the virtual address with the page size. The page table is then used to translate the page number into a corresponding physical frame number, which is combined with the offset to form the final physical address.
Why a mapping from logical address to physical address and Explain the protocols?
A mapping from logical address to physical address is essential for memory management in computer systems, as it allows the operating system to abstract the physical memory layout from applications, enabling efficient memory allocation and protection. This mapping is typically achieved through mechanisms such as paging and segmentation, which break down memory into manageable units. Protocols involved in this process include the Memory Management Unit (MMU) protocols, which translate logical addresses generated by programs into physical addresses in RAM, and the use of page tables to keep track of the mapping. Additionally, virtual memory protocols allow systems to use disk space as an extension of RAM, further enhancing memory efficiency.
Compare paging with segmentation with respect to the amount of memory required by the address translation structures in order to convert virtual addresses to physical addresses?
Oh, dude, paging and segmentation are like two sides of the same coin when it comes to address translation structures. Paging requires a page table to map virtual addresses to physical addresses, which can take up a lot of memory. On the other hand, segmentation uses a segment table to do the same thing, but it might not need as much memory as paging depending on the implementation. So, like, if you're all about saving memory space, segmentation might be the way to go.
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...
What value is laced in the age table to redirect linear address 20000000H to physical address 300000000H?
To redirect the linear address 20000000H to the physical address 300000000H, the value that needs to be laced in the age table is the difference between the two addresses, which can be calculated as 300000000H - 20000000H = 280000000H. This value represents the offset that must be applied to the linear address to achieve the desired physical address. In a typical paging system, this value would be placed in the page table entry corresponding to the relevant page to ensure the correct translation.
What is the minimum size of the paging file required to allow a memory dump in the event of a stop error?
That depends on how much memory is being used by the operating system, the apps and their data. In general a paging file is 2 to 3 times physical memory so, 4x the physical memory (paging file of 3x physical memory + physical memory) will guarantee enough room for all data IF the paging file is set to 3x physical memory. There would be more needed for the devices attached to the processor, but there will be holes in memory and these holes most often more than make up for the memory of attached devices.
