A demarc extension is the process of connecting your organizationâs network to a data lineâsuch as a T1, DSL, or POTSâprovided by the telephone company or another vendor.
Legacy system. In computing, a legacy system is an old method, technology, computer system, or application program, of, relating to, or being a previous or outdated computer system.. Often a pejorative term, referencing a system as legacy means that it paved the way for the standards that would follow it.
Weâll see about RDBMS later in this article. Database management system is the means of controlling databases either in the hard disk in a desktop system or on a network. Database management system is used for creating database, maintained database and provides the means of using the database.DBMS doesnât consider relationship between the tables.atabase management system is the means of controlling databases either in the hard disk in a desktop system or on a network. Database management system is used for creating database, maintained database and provides the means of using the database. DBMS doesnât consider relationship between the tables.