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In other words, MAR holds the memory location of data that needs to be accessed. When reading from memory, data addressed by MAR is fed into the MDR (memory data register) and then used by the CPU. When writing to memory, the CPU writes data from MDR to the memory location whose address is stored in MAR. The Memory Address Register is half of a minimal interface between a microprogram and computer storage. The other half is a memory data register. Far more complex memory interfaces exist, but this is the least that can work.
MAR (Memory Address Register) holds the address of the memory location to be accessed or written to in the memory unit, whereas MDR (Memory Data Register) holds the actual data that is to be written to a memory location or data read from a memory location. MAR is used to specify the address, while MDR is used to temporarily store the data during memory operations.
An address in C or C++ is the location in memory of an object or function. An address is the contents of a pointer, as opposed to the contents of the memory location pointed to by the pointer.
A memory address is an identifier for a memory location, at which a computer program or a hardware device can store data and later retrieve it.
A memory address is a specific location in a computer's memory where data is stored. Memory addressability refers to the maximum amount of memory that a computer system can access and use. In other words, memory addressability is the range of memory addresses that a computer can access, while a memory address is a specific location within that range.
It depends on how wide the data buses are on each chip, and how they're connected. If they're one byte wide, you could need over 256 million addresses, one for each byte. if they're wider, and connected to show an even wider combined data bus, it could be much less; around 32 million.
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.
The location of a particular piece of data is typically referred to as its memory address. This address is a unique identifier that allows the data to be stored and accessed within a computer's memory.
A memory mapped register is a register that has its specific address stored in a known memory location.
It is the fixed location of computers memory
A pointer only holds an address information (location) in the memory. if a pointer holds points another pointer then it is a pointer to an other pointer. Pointer holds an address in the memory so in that address there is an other location information that shows another location.