MICROPROCESSOR AND MICROCONTROLLER

Detailed explanation-1: -In general, a CPU executes an instruction by fetching it from memory, using its ALU to perform an operation, and then storing the result to memory.

Detailed explanation-2: -The CPU executes a program that is stored as a sequence of machine language instructions in main memory. It does this by repeatedly reading, or fetching, an instruction from memory and then carrying out, or executing, that instruction.

Detailed explanation-3: -The microprocessor follows a sequence: Fetch, Decode, and then Execute. Initially, the instructions are stored in the memory in a sequential order. The microprocessor fetches those instructions from the memory, then decodes it and executes those instructions till STOP instruction is reached.

Detailed explanation-4: -RAM is the main memory of a computer.

Detailed explanation-5: -RAM: Random Access Memory. DRAM: Dynamic RAM, is made of capacitors and transistors, and must be refreshed every 10 100 ms. ROM: Read Only Memory, is non-volatile and is more like a permanent storage for information.