How Do You Find Physical And Logical Addresses?

What is logical and physical memory?

Logical memory – memory as seen by the process.

Physical memory – memory as seen by the processor.

Only part of the program needs to be in memory for execution.

Logical address space can therefore be much larger than physical address space Allows address spaces to be shared by several processes..

Is logical address same as IP address?

Every network device has two types of addresses, one called the logical address — in most cases this is the IP address — and the other one being the physical address — also known as the MAC address. … The IP address is an address bound to the network device, i.e., computer, via software.

What happens if 2 devices have the same MAC address?

If two devices have the same MAC Address (which occurs more often than network administrators would like), neither computer can communicate properly. … Duplicate MAC Addresses separated by one or more routers is not a problem since the two devices won’t see each other and will use the router to communicate.

What is the purpose of physical address?

In computing, physical address refers to a memory address or the location of a memory cell in the main memory. It is used by both hardware and software for accessing data. Software, however, does not use physical addresses directly; instead, it accesses memory using a virtual address.

What is logical physical and port address?

Logical Address: is used at network layer. It is IP address that is generated while transmission of data over a network. Port address : is used at transport layer. In Transport layer there is process to process delivery for that it requires port address.It transfers data from client to server.

Why do we need logical and physical address?

The need of logical address is to securely manage our physical memory. … A logical address is generated so that a user program never directly access the physical memory and the process donot occupies memory which is acquired by another process thus corrupting that process.

What is the difference between logical and physical addresses?

The basic difference between Logical and physical address is that Logical address is generated by CPU in perspective of a program whereas the physical address is a location that exists in the memory unit.

Is MAC address same as physical address?

The MAC address (short for media access control address) is the worldwide unique hardware address of a single network adapter. The physical address is used to identify a device in computer networks. … With Microsoft Windows, the MAC address is referred to as the physical address.

What is logical and physical file?

Physical files contain the actual data that is stored on the system, and a description of how data is to be presented to or received from a program. Logical files do not contain data. … They contain a description of records found in one or more physical files.

How do I find the physical address of a logical address?

To compute the physical address:look up the page number in the page table and obtain the frame create the physical address, frame = 17 bits; offset = 12 bits; then 512 = 29. 1m = 220 => 0 – ( 229-1 ) if main memory is 512 k, then the physical address is 29 bits.

What is logical address with example?

In computing, a logical address is the address at which an item (memory cell, storage element, network host) appears to reside from the perspective of an executing application program. A logical address may be different from the physical address due to the operation of an address translator or mapping function.

What is the effective address?

The effective address is the location of an operand of the instruction, since the operand is the data to be accessed. Immediate instructions use their operand to hold the data needed to complete the instruction.

Why IP address is called logical address?

An IP address is a logical address for the network layer of the host connected to the network. … As an example, most devices on a network will have a logical interface configured as a loop back interface. This is purely a logical interface with no physical interface mapping.

Why physical address is needed?

So, Computer A could not really learn the MAC Address of Computer 2. And that’s why computers have both MAC Addresses and IP Addresses. MAC Addresses handle the physical connection from computer to computer while IP Addresses handle the logical routeable connection from both computer to computer AND network to network.

What is a physical address example?

A physical address is a real street address that can be used as a personal or business mailing address. … Unlike a PO Box, a physical address can receive unrestricted mail and parcels from carriers other than USPS, such as UPS, FedEx, DHL, and Amazon.