How the performance of the computer will be affected if there is no cache?

If there is no cache, the performance of the computer will significantly degrade due to increased latency in data access. The CPU will have to fetch data directly from the slower main memory (RAM) for every operation, resulting in longer wait times for processing tasks. This can lead to reduced overall system efficiency and slower execution of programs, especially those requiring frequent data retrieval. Overall, the absence of cache would lead to a noticeable decline in system speed and responsiveness.