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system is an old method, technology, computer system, or application program, of, relating to, or being a previous or outdated computer system..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.
DBMS is the abbreviated form of D ata B ase M anagement S ystem. Database management system is a computer software component introduced during 1960âs. It is used for controlling various databases in the desktop computer or server.It was also termed as Navigational Database Management System.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.