Final answer:
The cache memory fetches data into the CPU control unit.
Step-by-step explanation:
The cache memory is responsible for fetching data into the CPU control unit. The cache memory is a small, high-speed memory that stores frequently used data and instructions from the main memory (RAM). It is located very close to the CPU, allowing for faster access compared to the main memory.
The RAM (Random Access Memory) is a large, main memory of a computer system. Although the RAM stores data, it does not directly fetch data into the CPU control unit.
The hard disk is a non-volatile storage device that is much slower than the cache memory and RAM. It is used for long-term storage of data and does not directly fetch data into the CPU control unit.
The GPU (Graphics Processing Unit) is primarily responsible for rendering graphics and assisting with tasks related to visuals. It does not fetch data into the CPU control unit.