What is the main memory ? Differentiate among RAM, Semiconductor memories and Cache memory.

Main reminiscence, also called primary memory, is a kind of computer reminiscence that is directly on hand to the CPU. It is used to store records and instructions that the CPU desires to access fast.

Difference Between Primary and Secondary Memory (with Comparison Chart) -  Tech Differences

  • RAM (Random Access Memory) is a form of semiconductor memory this is usually used as fundamental reminiscence in computer systems. It is volatile, which means that it loses its contents whilst the pc is grew to become off. RAM lets in the CPU to get right of entry to data and commands fast, but its capability is restricted and it’s miles noticeably pricey.
  • Semiconductor reminiscences are a kind of electronic garage device that use semiconductor generation to save records. They are non-risky, this means that that they maintain their contents even when the power is became off. Examples of semiconductor reminiscences encompass ROM (Read-Only Memory), PROM (Programmable Read-Only Memory), EPROM (Erasable Programmable Read-Only Memory), and EEPROM (Electrically Erasable Programmable Read-Only Memory).
  • Cache memory is a sort of high-speed reminiscence this is used to keep often accessed statistics and instructions. It is placed towards the CPU than main reminiscence and is used to reduce the latency of memory get right of entry to. Cache memory can be each at the CPU itself (L1 and L2 cache) or on a separate chip (L3 cache).

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