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Ríomhairí, Ríomheolaíocht Riachtanas a bhaineann le comhad gur gá scanadh trí na taifid idirmheánacha ón bpointe tosaigh le rochtain a fháil ar thaifead ann. Gné nádúrtha de mheán ar nós téip maighnéadach nó téip caiséide ar gá dul tríothu in ord seasta.
Computers, Computer Science A requirement of the file that accessing a record requires scanning through all the intermediate records from the starting position. Sequential access is an inherent feature of a medium such as magnetic tape or cassette tape, where the medium must be reviewed in a fixed order.