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What Does Network Addressable Unit (NAU) Mean? Techopedia Explains Network Addressable Unit (NAU) SNA describes three significant network addressable units: LUs, PUs and CPs. Each one plays a vital role in setting up connections among systems in an SNA network. These are further explained as follows: System services control points: SSCPs offer services for handling a network or a subnetwork (usually in a mainframe). Control points (CPs) control SNA nodes in addition to their resources....

What Does Seamless Interface Mean? A seamless interface is two computer programs that are carefully joined together so that they appear to be a single program with a single user interface. A seamless interface will conceal the fact that it is created from two different programs, even if those programs were written by two different programmers. Techopedia Explains Seamless Interface In software technology, concealing the seam is of prime importance. The aim of any application integration is to provide a seamless interface....

What Does Semantic Network Mean? A semantic network is a system in which commonly understood labeling is used to show relationships between its parts. In a semantic network, network elements are represented with semantic labels that make sense in a given target language. A semantic network is also known as a frame network. Techopedia Explains Semantic Network Semantic networks vary in type and can represent very diverse systems. For example, engineers or project managers may construct a semantic network design for an IT network that uses semantic labels to refer to network nodes or connected devices with different roles....

What Does Vampire Tap Mean? A vampire tap is a device that connects 10BASE5 cabling to Ethernet transceivers. The vampire tap gets its name from the way it taps into a cable. It pierces or bites through the insulation of the cable instead of slicing both ends to attach connectors. To connect the cable to the transceiver, a hole is drilled through the outer shielding. A spike is then forced through the hole to contact the inner conductor while other spikes are clamped onto the outer conductor....

What Does Webcam Mean? A webcam is a small digital video camera directly or indirectly connected to a computer or a computer network. Techopedia Explains Webcam A webcam is an input device that captures digital images. These are transferred to the computer, which moves them to a server. From there, they can be transmitted to the hosting page. Laptops and desktops are often equipped with a webcam.

What Does Boolean Mean? Boolean refers to a system of logical thought that is used to create true/false statements. A Boolean value expresses a truth value (which can be either true or false). Boolean expressions use the operators AND, OR, XOR and NOT to compare values and return a true or false result. Techopedia Explains Boolean Because computer operate in binary, computer logic can often be represented in Boolean terms. For example, Boolean logic may describe computer circuit states that are charged (1, or true) or not charged (0, or false)....

What Does Broadband Mean? Broadband is a high-data-rate connection to the Internet. The technology gets its name as a result of the wide band of frequencies that isavailable for information transmission. Information can be multiplexed and sent on numerous channels, allowingmore information to be transmitted at a given time. The standard broadband technology in most areas is cable Internet and assymetric digital subscriber line (ADSL). The latest technologies are very-high-bitrate DSL and optical fiber connections....

What Does Continuity of Operations Plan (COOP) Mean? A Continuity of Operations Plan or COOP is part of a principle called continuity of operations that helps to ensure trouble-free operations through unanticipated events. Many attribute this term and idea to the U.S. Federal government which has mandated that agencies need to provide for continuity of operations in many different crises. Techopedia Explains Continuity of Operations Plan (COOP) Many enterprises also maintain these kinds of plans....

What Does Data Science Mean? Data science is a broad field that refers to the collective processes, theories, concepts, tools and technologies that enable the review, analysis and extraction of valuable knowledge and information from raw data. It is geared toward helping individuals and organizations make better decisions from stored, consumed and managed data. Techopedia Explains Data Science Data science enables the use of theoretical, mathematical, computational and other practical methods to study and evaluate data....

What Does Federal Intrusion Detection Network (FIDNET) Mean? The federal intrusion detection network (FIDNET) is a type of government security management system for government networks. It is used to identify possible security breaches, including intrusion attacks from outside the organization and misuse attacks from within the organization. Techopedia Explains Federal Intrusion Detection Network (FIDNET) Executive Order 13010 was released on 1996. It was entitled “Critical Infrastructure Protection”. President Bill Clinton stated that certain national infrastructures are so vital that their incapacity or destruction would have a voluminous impact on the defense or economic security of the United States....

What Does Half Duplex (HDX) Mean? Half duplex (HDC) is a type of system that enables bidirectional data or voice communication between two nodes, where both end nodes send or receive data one node at a time. Techopedia Explains Half Duplex (HDX) HDX uses a single path of communication for sending and receiving and is like a one-lane road, where only one car can move in one direction at a time, while a car at the opposite end of the lane must wait before driving....

What Does HomePlug Mean? HomePlug refers to hardware devices specifically designed for communication and transfer of data. HomePlug devices can transmit data specifications such as Ethernet, USB and 802.11 Wi-Fi technologies through a building’s electrical wiring to connect PCs and other devices that use a network connection. Techopedia Explains HomePlug First introduced in June 2001, HomePlug is a specification standard used in testing and standardization of hardware used for communication of two or more devices....

What Does Input/Output (I/O) Mean? Input/output (I/O), in computing, is a communication process between a computer and the outside world. Techopedia Explains Input/Output (I/O) There are input and output operations performed in a computer context everywhere. Simple common I/O devices include a mouse, keyboard, monitor and printer.

What Does Java Message Service (JMS) Mean? Java Message Service (JMS) is an application programming interface (API) by Sun Microsystems that functions as Java message-oriented middleware. It is designed for an exchange of loosely coupled, reliable and asynchronous messages between different software application components (called clients), which are based on the Java 2 Platform, Enterprise Edition (J2EE). JMS is a messaging standard capable of creating, sending, receiving and reading messages as requests, reports, or events consumed by the software application components, not by humans....

What Does Karnaugh Mapping (K-Mapping) Mean? Karnaugh mapping (K-mapping) is the process of forming a pictorial map used to reduce a Boolean expression, forming a resultant with a fewer number of literals (logical operations) and variables. K-mapping can be similar to drawing a truth table whereby each variable’s state is shown in every possible combination with other variables. This way, common variables can be grouped together to optimize the actual equation....

What Does Linux, Apache, MySQL and Perl/PHP/Python (LAMP) Mean? Linux, Apache, MySQL and Perl/PHP/Python is a solution stack that is most commonly referred to using its acronym “LAMP.” It is an open source development platform for creating and managing Web applications. Linux serves as the backend operating system (OS). Apache is the Web server, MySQL is the database, and one of PHP, Perl, Python is the scripting language. PHP is the most popular of the three scripting languages....

What Does Object-Oriented JavaScript Mean? Object-oriented JavaScript is a type of object-oriented programming language (OOPL) that utilizes most of the object-oriented design and programming techniques within JavaScript-based programs and applications. It incorporates features and capabilities from an OOP context, but differently than standard OOP languages. Techopedia Explains Object-Oriented JavaScript Unlike other OOPLs, object-oriented JavaScript is prototype-based and does not utilize and support class statements. In turn, functions are used as a means to represent a class....

What Does Resource Monitor (Resmon) Mean? Resource Monitor (Resmon) is a system application included in Windows Vista and later versions of Windows that allows users to look at the presence and allocation of resources on a computer. This application allows administrators and other users determine how system resources are being used by a particular hardware setup. Techopedia Explains Resource Monitor (Resmon) Resource Monitor is found in the Task Manager under the “Performance” tab....

What Does Resource Reservation Protocol (RSVP) Mean? Resource Reservation Protocol (RSVP) is a transport layer protocol used to reserve network resources and enable running Internet applications to gain quality of service (QoS). Some old networks were required to provide reliability of data. However, in today’s era of network systems, time is often more important than reliability. Instead, RSVP is supported by a QoS network, providing both the quality of service and insured data....

What Does Tape Backup Mean? Tape backup is a traditional backup procedure that uses magnetic tape or any tape cartridge as the storage device. Enormous amounts of data in the hard disk can be duplicated into the tape such that in the event of an unfortunate hard disk crash, the data can be restored. Although end users already prefer disk or online backup storage, tape backup continues to exist in large enterprises because of its archival stability....