execution cycle; instruction execution stage
Technical computing term referring to the phase in a processor's operation where an instruction is actually carried out.
In the CPU's execution cycle, the actual computation takes place.
命令フェッチ refers to the instruction fetch stage, which precedes the execution cycle in a processor pipeline.
Compound of 命令 (instruction), 実行 (execution), and 段階 (stage/phase). A straightforward technical term formed from standard Sino-Japanese elements.