1. The basic composition of main memory
The main memory is divided into three parts : memory bank , MAR and MDR .
Memory bank: data is stored in the memory bank according to the address
MAR: (Memory Address Register) storage address register
MDR: (Memory Data Register) storage address register
The two have the same place, but the CPU can not only read data, but also write data. The controller first informs the memory bank whether the next operation to be performed is a write operation or a read operation.
Second, the composition of the CPU
In theory, there are multiple X general-purpose operand registers in the machine, although one can also perform operations.
The process of running the program (for the specific process, see Wangdao Postgraduate Entrance Examination 1.2.2_Recognize each component starting from 19 minutes)
review
