A computer program is a series of instructions that must contain sequence, selection, or repetition.
Sequence, Selection Or Repetition
Sequence is when the instructions are read in list fashion. Selection would be when some condition is specified such as if a given field is equal to a number or other given field. Do this if. Repetition is when a given instruction is repeated over and over again until a given condition is met such as do this 100 times. Do this until.
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