What is digital-memory expertise? To answer this question, this paper reviews the history of digital memory expertise research .

Objective To compare the characteristics and differences of the activation of the brain regions between the digital memory span task and digital working memory task.

Results showed: (1) Numeral short-memory ranges from 8 to 10; (2) There was little significant sex different in numeral short-memory; (3) There was little significant relation between short-memory ranges and IQ; (4) Repeat and chunk are the most processing strategies of short-memory of college students.