4 pages -> 2^2 bits
1024 bytes -> 2^10 bits
64 frames -> 2^6 bits
Therefore:
Logical memory = 2+10=12 bits
Physical memory = 10 +6 =16 bits
The physical layer is layer 1. It comprises the hardware (routers, repeaters, hubs, switches, etc.) that are used to form the physical basis of a network. They receive, process, and transmit raw electric (or optical) signals, rather than logical data packets.
The main purpose of a scientific model is to represent empirical objects, physical processes and phenomena in a logical and objective way.
An inference is a conclusion based on logical reasoning.
Which defines a logical explanation that accounts for observations
Logical research is basically the same as normal research, except in logic research it's very important to substantiate your reasons and to explain things from a logical point of view.
In the 8086/8088 the physical address and logical address have the same importance, because they both relate to the address of the operand. It is true that the offset (logical) address is added to the segment address to determine the physical address, but the limitations of the architecture of the processor forces programmers to consider both.If you are talking about a virtual environment, however, such as in the 80286 or higher, then the logical address is more important than the physical address, because the logical address is the address of the operand, while the physical address is (somewhat) arbitrarily assigned by the operating system.
A Physical Address...
your question is wrong. it should be "can physical address and logical address be same" answer is no because logical address is the combination of page number and offset whereas physical address is the combination of physical page[frame] and offset
The concept of a logical address space is simply involved the process of mapping the Logical addresses to their Physical Addresses . Logical addresses are generated by the CPU; also referred to as virtual addresses.while Physical Address is the actual address of the data stored on the physical device and mapped by MMU.
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.
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.
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.
- An MMU (memory management unit) generates physical address. - A CPU (central processing unit) generates a logical address.
Linear data structure is used to convert the logical address to physical address .Stack is used in this and the various conversion such as postfix,prefix and infix notation are come in this
(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
A physical address is concrete and never changes. It is set in memory. A logical address is made up of a base pointer and an offset.It keeps programs running parallel and not intertwining.
Yes. This is the fundamental premise of paged or virtual memory - that you can have more logical memory than physical memory.