Learn in the textbookControl Structures and Notation Methods
DefinitionSequence (順次) is a control structure that runs steps one at a time, top to bottom, in the order they are written.
ExplanationAn algorithm (アルゴリズム) is a procedure of processing steps that achieves a goal, and any procedure can be built from three basic control structures (基本制御構造): sequence plus selection and iteration (the structured program theorem). A sequence has no branches and no returns, so processing follows one straight path.
AnalogyIt is like making instant noodles: pour in hot water, wait, then peel back the lid, in exactly the order printed on the cup.