What do you mean by logical and physical address explain it?

What do you mean by logical and physical address explain it?

Logical Address is generated by CPU while a program is running. Physical Address identifies a physical location of required data in a memory. The user never directly deals with the physical address but can access by its corresponding logical address.

What is the difference between the physical and the logical address?

The basic difference between Logical and physical address is that Logical address is generated by CPU in perspective of a program. On the other hand, the physical address is a location that exists in the memory unit. The set of all logical addresses generated by CPU for a program is called Logical Address Space.

How do you get a physical address?

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What is the formula for calculating logical address to physical address *?

Example: If Logical Address = 31 bit, then Logical Address Space = 231 words = 2 G words (1 G = 230) If Logical Address Space = 128 M words = 27 * 220 words, then Logical Address = log2 227 = 27 bits. If Physical Address = 22 bit, then Physical Address Space = 222 words = 4 M words (1 M = 220)

What is effective address and physical address?

Sometimes effective address is also referred to as offset address. NOW physical address is the actual address of the instruction . 1MB memory is divided into 16 segments. Each segment has their own offset address and the base address is defined by the base segment registers.

What is meant by base address?

In computing, a base address is an address serving as a reference point (“base”) for other addresses. Under the relative addressing scheme, to obtain an absolute address, the relevant base address is taken and offset (aka displacement) is added to it.

What is meant by physical address in 8086?

In computing, a physical address (also real address, or binary address), is a memory address that is represented in the form of a binary number on the address bus circuitry in order to enable the data bus to access a particular storage cell of main memory, or a register of memory-mapped I/O device.