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system is an old method, technology, computer system, or application program, of, relating to, or being a previous or outdated computer system..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.
As businesses face growth and expansion, they also face the problem of legacy system integration with new technologies, web applications, mobile applications as well as in the cloud. Legacy systems are old, inflexible technologies put into place to resolve previous business challenges.