L1 cache is a small, high-speed storage area located directly on the CPU chip that stores frequently accessed data and instructions to reduce the time it takes for the processor to retrieve information. It is the first level of cache memory, playing a crucial role in speeding up data access by providing quicker access than main memory (RAM). The L1 cache is typically divided into two sections: one for data and another for instructions, allowing the CPU to fetch what it needs efficiently without having to go through slower memory.
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