1. I have learned stack memory addressing mode. I learned how to store data in stack by push instructions and restore data by pop instructions. I have learned about the stack pointer and the offset address of the data. I have learned about the lifo system etc.
2. We use stack segment to store multiple data in one register. We have only four register in assembly language. If we use the stack we can easily store any data in the stack temporarily using push instruction and restore the data using pop instruction.