Definition: In this task, you are given a question and a context passage. You have to answer the question based on the given passage.
Input: What types of actions can be applied the CPU's special set of memory?, Context: The CPU contains a special set of memory cells called registers that can be read and written to much more rapidly than the main memory area. There are typically between two and one hundred registers depending on the type of CPU. Registers are used for the most frequently needed data items to avoid having to access main memory every time data is needed. As data is constantly being worked on, reducing the need to access main memory (which is often slow compared to the ALU and control units) greatly increases the computer's speed.
Output:
read and written