Also called point of demarcation (POD), demarc extension, or demarc, it is the physical point at which the public network of a telecommunications company (i.e., a phone or cable company) ends and the private network of a customer begins – this is usually where the cable physically enters a building.
For example, if your business subscribes to receive Internet through a local phone or cable company, the provider installs a demarcation point at your business. The demarc is usually a grey box mounted on the outside of the building. On the outside of the building the provider’s wires run in to the demarc (overhead or underground). The wires are switched at the Demarc and are then run into the physical building. For residential services, the demarc is often installed inside the residence in the homeowner’s cellar or basement.
Short for plain old java interface. It is used to enforce the idea of developing an API against interfaces instead of implementations.
Acronym for Plain Old Java Object. POJO, or Plain Old Java Object, is a normal Java object class (that is, not a JavaBean, EntityBean etc.) and does not serve any other special role nor does it implement any special interfaces of any of the Java frameworks. This term was coined by Martin Fowler, Rebbecca Parsons […]
Short for Passive Optical Network, a high-bandwidth, point-to-multipoint optical fiber network based on the asynchronous transfer mode protocol (ATM), Ethernet or TDM. PONs generally consist of an OLT (Optical Line Termination), which is connected to ONUs (Optical Network Units), aka subscriber terminals, using only fibre cables, optical splitters and other passive components (do not transmit […]
- Post Office Protocol (POP)
(1) POP is short for Post Office Protocol, a protocol used to retrieve e-mail from a mail server. Most e-mail applications (sometimes called an e-mail client) use the POP protocol, although some can use the newer IMAP (Internet Message Access Protocol). There are two versions of POP. The first, called POP2, became a standard in […]
Acronym for Portable Operating System Interface for UNIX, a set of IEEE and ISO standards that define an interface between programs and operating systems. By designing their programs to conform to POSIX, developers have some assurance that their software can be easily ported to POSIX-compliant operating systems. This includes most varieties of UNIX. The POSIX […]