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Physical address's are set at factory, the first 6 characters are that of the manufacturer.
The last 6 digits are unique to that product/device.
This is not a calculated field.
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Why you need memory physical address and memory logical address?
Physical Address refers to Storage location on Physical Memory wheres Logical Addressing is used by Memory Managing Programs to refers addresses from Physical Memory and Virtual Memory.
What is logical address space and physical address space?
Logical address is the address generated by the CPU (from the perspective of a program that is running) whereas physical address (or the real address) is the address seen by the memory unit and it allows the data bus to access a particular memory cell in the main memory. All the logical addresses need to be mapped in to physical addresses before they can be used by the MMU. Physical and logical addresses are same when using compile time and load time address binding but they differ when using execution time address binding.
What is the hexadecimal address range for upper memory?
group of consecutive memory that has had physical memory assigned to it
How do you calculate starting address in the memory map of a 4k byte memory is 2000Hspecify the last address?
If a 4k segment is stored at address 2000H, the last address will be 2FFFH.
In paged system Can the logical address space b larger than physical address space?
Yes. This is the fundamental premise of paged or virtual memory - that you can have more logical memory than physical memory.
How virtual address is translated into physical address?
MMU-memory management unit
Physical address and logical address?
A logical (or virtual) address is a reference to a memory location independent of the current assignment of data to memory; a translation must be made to a physical address before the memory access can be achieved. A relative address is the address expressed as a location relative to some known point, usually the beginning of the program. A physical address, or absolute address, is an actual location in main memory.
What kind of memory address does a CPU generate?
- An MMU (memory management unit) generates physical address. - A CPU (central processing unit) generates a logical address.
Which formula you will use to calculate The memory address of fifth element of an array?
a
What factors determine how much physical memory an 80286 can address?
An 80286 has a 24 bit address bus. As such, it can address 224, or 16,777,216, or 16 MB of memory.
How to calculate virtual memory in 80286 microprocessor?
Virtual memory does not exist physically but it is available in the systemThe procedure of fetching the chosen pgm. Segments or data from the secondary storage into the physical memory is called swappingSo it can address 1GBPhysical address calculation in PVAMIt uses 16-bit content of a segment register as a selector to address a descriptor stored in physical memoryThe descriptor is a block of contiguous memory locations containing information of a segmentPrivilege levels prevent unauthorized accessesMaximum segment size will be of 64kb
What is the meaning of memory mapped bus?
Memory mapped buses helps in the extension of the address of the physical ram through which the devices can access the address
