sequential operation vs serial operation

sequential operation and serial operation both are nouns.

Word	Noun	Adjective	Verb	Adverb
sequential operation	Yes	No	No	No
serial operation	Yes	No	No	No

As nouns, sequential operation and serial operation are synonyms defined as:

sequential operation and serial operation: the sequential execution of operations one after another

Other synonyms of sequential operation include consecutive operation.

sequential operation (noun)	serial operation (noun)
the sequential execution of operations one after another	the sequential execution of operations one after another