CPU components and their function

Video one— The fetch-execute cycle.

Notes:

• A computer is an electronic device that takes an input, processes data, and produces an output.

• To process data, a computer uses a set of instructions, known as a program.

• Memory stores the program

• CPU executes program

• FDE cycle is executed billions of times/second

• The clock speed of the CPU represents how many times the CPU can execute the FDE cycle.

Video two— CPU components and their function.

Notes:

• ALU— Arithmetic Logic Unit: performs arithmetic and logic operations.

• CU— Control Unit: controls the flow of data within the CPU.

• Cache: Fast access to memory that's called frequently; generally inside the CPU.

• Registers: Small, fast memory locations inside the CPU. Each has a dedicated purpose.