When the data is fetched from the memory and copied to the MDR the information is stored in one single direction and the data is written by other CPU registers that store data in computer memory. There are two types of registering in the memory data register. The memory data register stores the data before the data is transferred to the decoder. The main use of the memory data register is to act as a buffer as it can store anything that can be copied from the computer memory and can be used by the processor for further operations. The memory data register is used to store the data that will be stored or will be fetched from the computer memory I.e. The full form of MDR register is a memory data register. The memory address register always stores the address of the next location where data related operation will be executed. In the writing operation, the data is fetched from the memory data register and stored at the address located by the memory address register. At the time of reading operation, the address is fetched from register to access the data, and then this data is fed into other types of registers known as memory data register (MDR). The memory address register is mainly used for reading and writing operation of data from memory. The memory address register stores the address so that data can be easily fetched from the register. The central processing unit widely used the memory address register to read any type of data or store any type of data in this type of register.

The memory address register issued to fetch the instructions and data from the memory and helps to execute the instructions. The full form of MAR is the memory address register. Hadoop, Data Science, Statistics & others 1.

Another word for running a register