MICROPROCESSOR AND MICROCONTROLLER

Detailed explanation-1: -To speed up the processor operations, the processor includes some internal memory storage locations, called registers. The registers store data elements for processing without having to access the memory. A limited number of registers are built into the processor chip.

Detailed explanation-2: -A register is traditionally the place where customers pay for their retail purchases. Today most registers are connected to a point of sale system and are known as POS terminals.

Detailed explanation-3: -The 8085 has six general-purpose registers to store 8-bit data; these are identified as B, C, D, E, H and L as shown in the figure. They can be combined as register pairs-BC, DE, and HL-to perform some 16-bit operations.

Detailed explanation-4: -Registers are a type of computer memory used to quickly accept, store, and transfer data and instructions that are being used immediately by the CPU.

Detailed explanation-5: -A memory data register is used to hold data that will be stored or fetched from the computer memory, also known as random-access memory (RAM). The memory data register serves primarily as a buffer, storing everything that can be copied from the computer memory and used by the processor for subsequent tasks.