A BIT is a smallest unit of data in a computer. It has either 0 or 1.
Set of 4 bits form a NIBBLE
Set of 8 bits form a BYTE
Each CHARACTER occupies one byte of memory
Set of characters form a FIELD
Set of fields form a RECORD
Set of records form a FILE
Set of files form a DATABASE
Correct answer --- Character, Field, Record, File, Database
When raw-data is processed, the outcome of the process is called as information.
So, Input, Output and processing devices grouped together represents an Information Processing Cycle.