MAR is memory address register. MDR is memory data register. These are registers part of the control unit (CU) in your cpu.
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A computer is a person or a machine that performs computations. An accountant is a computer (human computer). A slide-rule is a computer (an analog computer). A smart phone is a computer (digital computer).
The super computer is a massively parallel digital computer.
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PC means 'personal computer'. PC is your computer.
The Memory Address Register (MAR) holds the memory address that is currently being accessed or written to in the memory. The Memory Data Register (MDR) holds the data that is being read from or written to the memory at the address stored in the MAR. Together, the MAR and MDR facilitate the communication between the CPU and memory in a computer system.
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.
When concerning marketing, the letters MDR is an acronym for market data retrieval or retrieving information or data from another source (computer, etc).
There are 4 versions of Sony's MDR headphones, and they are MDR-V6, MDR-V600, MDR-7506 and MDR-7509HD. These headphones each have different specifications, and are a favourite of sound professionals.
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.
My anus raisin by Patrick kynda
MDR Musiksommer was created in 1992.
MDR Symphony Orchestra was created in 1923.
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MAR-memory address register used stored the address of the memory loaction MBR- memory buffer register is the actully data.
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Block diagram of the von Neumann architecture: MQ, multiplier quotient register; IR, instruction register; IBR, instruction buffer register; MAR, memory address register; MDR, memory data register