Mell Where is executing data stored?
main memory
When the CPU executes a program, that program is stored in the computer’s main memory (also called the RAM or random access memory). In addition to the program, memory can also hold data that is being used or processed by the program.
Where are instructions executed in a computer?
The CPU’s program counter is set to the memory location where the first instruction in the program has been stored, and execution begins. The program is now running. In a program, each machine code instruction takes up a slot in the main memory. These slots (or memory locations) each have a unique memory address.
What part of the computer executes instructions stored in RAM?
The CPU
The CPU. The CPU is the heart of the computer. A program is a sequence of instructions stored in main memory. When a program is run, the CPU fetches the instructions and executes or follows the instructions.
What does a computer use to permanently stored programs and data when it is turned off?
Random Access Memory (RAM) RAM is the computer’s ‘working memory’. RAM temporarily stores programs and data that are being used at a given time. The contents of RAM can be changed and are lost when the computer is turned off. Memory which is wiped clean when the computer is turned off is called volatile memory.
What keeps records and data permanently?
Permanent storage includes: Magnetic: Magnetic tape and hard disk drives use magnetic properties to store and retrieve information. This allows large amounts of information and programs to be stored permanently, although the devices take longer to write and read the information than RAM.
Where are the instructions stored in a computer?
The program instructions are stored into the main memory RAM. The computer memory is organized into number of cells. Each cell (location) has a specific memory address. The processor initiates the program execution by fetching the machine instructions one by one from the main memory RAM.
Where is the fetched instruction stored in the CPU?
The fetched instruction is stored in the instruction register in the CPU and the program counter is increased to point to the next instruction in the memory The fetched instruction (stored in the instruction register) is the executed (the CPU will do the operation indicated by the instruction code in the instruction register)
Which is the basic operation of a computer?
The basic operation of a computer is called the ‘fetch-execute’ cycle. The CPU is designed to understand a set of instructions – the instruction set. It fetches the instructions from the main memory and executes them. This is done repeatedly from when the computer is booted up to when it is shut down.
What kind of instructions does a computer execute?
The computeris a computing (reckoning) machine All existing computers (actually the CPU)execute the following 3 types of instructions: Arithmetic and logic operations AND OR NOT The result of an arithmeticand logicoperation is often stored in a general purpose register Memory transfer operations