What is the difference between logical memory and physical memory?
The logical address does not exist physically in the memory whereas physical address is a location in the memory that can be accessed physically. The logical address is generated by the CPU while the program is running whereas the physical address is computed by the Memory Management Unit (MMU).
How does 8086 calculate physical address from logical address?
Logical address is specified as Segment base : Offset value. Physical address is obtained by shifting the segment address 4 bits to left adding the offset address. Physical address = ( Segment base*10H ) + Offset Value.
How a logical address is translated to a physical address?
The logical address undergoes translation by the MMU or address translation unit in particular. The output of this process is the appropriate physical address or the location of code/data in RAM. If you know that during compile time, where process will reside in memory, then an absolute address is generated.
What is physical and logical address space?
Logical Address Space is set of all logical addresses generated by CPU in reference to a program. Physical Address is set of all physical addresses mapped to the corresponding logical addresses. The user can use the logical address to access the physical address.
Why IP address is a logical address?
An IP address is a “logical” address because it declares and identifies that device as part of the overall logic system we call TCP-IP, (Transmission Control Protocol – Internet Protocol) and allows it to communicate with other such devices.
Why is it called physical address?
The MAC address is a physical address (also called a hardware address) because it physically identifies an item of hardware. Only a manufacturer assigns “Universally Managed” physical address to a device and they are called “burned-in addresses”.
What is the another name of physical address?
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.
What is considered a physical address?
A Physical Address is a real street address that you can use for business or personal use. Because Physical Addresses are real street addresses, not a PO Box, you can register your business and receive packages from any carrier, including FedEx and UPS.
What is the difference between a physical address and a mailing address?
The key difference between a mailing address and a physical address is that a physical address is where the physical company is situated, whereas a mailing address is where a business has post delivered but doesn’t necessarily operate from.