What are the 4 steps of the machine cycle?
Four steps of machine cycleFetch – Retrieve an instruction from the memory.Decode – Translate the retrieved instruction into a series of computer commands.Execute – Execute the computer commands.Store – Send and write the results back in memory..
What is the instruction execution cycle?
Instruction Execution Cycle The time period during which one instruction is fetched from memory and execute when computer given an instruction in machine language. Each instruction is further divided into sequence of phases. After the execution of program counter is incremented to point to the next instruction.
What are the two steps involved in instruction processing?
The simplest model of instruction processing can be a two step process. The CPU reads (fetches) instructions (codes) from the memory one at a time, and executes or performs the operation specified by this. Instruction fetch involves reading of an instruction from a memory location to the CPU register.
What is instruction cycle explain?
The instruction cycle (also known as the fetch–decode–execute cycle, or simply the fetch-execute cycle) is the cycle that the central processing unit (CPU) follows from boot-up until the computer has shut down in order to process instructions.