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system is an old method, technology, computer system, or application program, of, relating to, or being a previous or outdated computer system..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.
Basic process technology types. 1  SRAM - based on static memory technology. In-system programmable and re-programmable. 2  Antifuse - One-time programmable. CMOS. 3  PROM - Programmable Read-Only Memory technology. One-time programmable because of plastic packaging. 4  EPROM - Erasable Programmable Read-Only Memory technology.