Topic: Sequential Access
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What are sequential access files?
The file(s) (data) which are accessed in a sequential or a orderly manner is called as a sequentially accessing a file. Read More »
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What are the media with sequential access?
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What is sequential access?
( si′kwen·chəl ′ak′ses ) (computer science) A process that involves reading or writing data serially and, by extension, a data-recording medium that must be read serially, as a magnetic tape. Read More »
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Sequential Access
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( ′kēd si′kwen·chəl ′ak′ses ′meth·əd ) (computer science) A method for locating data in a file either directly, by using the value of a key within a particular record, or sequentially, according to the values of the keys in all the records ...
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Sequential access is a method of data access used by tape drives, whereby data is written or read sequentially from the beginning to the end of the tape or until the desired data is found. Basically, in order to read data from anywhere on a...
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magnetic tape
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Hello, Both terms "direct access" and "sequential access" as you must have guessed refer to accessing schemes in the file system. In broadest sense difference between these two can be stated like this -In sequential access data is stored at...
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Source: http://wiki.answers.com/Q/What_is_the_difference_between_direct_a...
During sequential access, if you want to access the nth byte of a file, you must read all bytes 0 through n. During random file access, you may skip directly to the nth byte without having to read through all previous bytes.
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Accessing data sequentially is much faster than accessing it randomly because of the way in which the disk hardware works.
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