(a) Bit: It is the smallest item in a physical file.
(b) Character: In a physical file, a character is a combination of several bits together(That is, one byte) while in logical file, character is the smallest item.
(c) Field: is a logical combination of related characters to form attributes of a given entity. For example, in Student file, Admission number column is a field.
(d) Record: It refers to a collection of related fields to form a single entity. A row showing details of a student such as admission number, names and class is good example of a record.
maurice.mutuku answered the question on April 18, 2018 at 05:43
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