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Cache memory or CPU memory, is type of random access memory (RAM) that a computer microprocessor can access more quickly than it can access regular RAM. Cache memory supplies the processor with the most frequently requested data and instructions.
Level 1 cache (primary cache) is the cache closest to the processor. Level 2 cache (secondary cache) is the cache second closest to the processor and is usually on the motherboard. Cache memory is integrated directly with the CPU chip or placed on a separate chip that has a separate bus interconnect with the CPU.
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Hi. This is an addition to the answer I have provide above.
Cache memory is in the processor chip, which allows it to 'talk' with the processor direct at a much higher speed than standard RAM. Cache memory is a portion of memory made of high-speed static RAM (SRAM) instead of the slower and cheaper dynamic RAM (DRAM) used for main memory
Level 1 (L1) cache is extremely fast but relatively small, and is usually embedded in the processor chip (CPU).
Level 2 (L2) cache is larger than L1; it may be located on the CPU or on a separate chip or coprocessor with a high-speed alternative system bus interconnecting the cache to the CPU, so as not to be slowed by traffic on the main system bus.Some memory caches are built into the architecture of microprocessors.for example, The Intel 80486 microprocessor, contains an 8K memory cache and the Pentium has a 16K cache and Most modern PCs also come with external cache memory, called Level 2 (L2) caches. These caches sit between the CPU and the DRAM and are composed of SRAM but they are much larger
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