A register is a small, high-speed storage circuit located inside the CPU, used to temporarily hold data needed for arithmetic and control operations. It is significantly faster than main memory (RAM) and is the fastest storage directly accessible by the CPU. Registers store values such as intermediate results and instruction addresses during the various stages of processing.

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• 2021r03 #64CPU 内部にある高速小容量の記憶回路であり，演算や制御に関わるデータを一時的に記憶するのに用いられるものはどれか。