Explanation:
Formal; A formal information system is based on
the organization represented by the organization chart.
Informal; The informal information system is
employee based system designed
to meet personal and vocational needs
and to help in solution of work-related problems.
Here, you go drawn , in paint. Please note that you can simplify further more the circuit by removing any two not following each other.
True. At least that's how it is for camera's that print photos. Not digital cameras
Usually a LAN (Local Area Network), but it's not a requirement. A WAN (Wide Area Network) would need to be used in a multi-campus setup.
Answer: Primary key
Explanation: Relational databases are those databases which are commonly found in the form of tables . It works in the relation pattern for accessing the data in the database
Primary key is a major factor which is found in the relational databases for the identification of the data in the table's column.It is considered as the unique value that corresponds to the values of rows in the table of relational database.
