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Floor Control
For computer networking, floor control allows users of networked multimedia applications to utilize and share resources such as remote devices, distributed data sets, telepointers, or continuous media such as video and audio without access conflicts. Floors are temporary permissions granted dynamically to collaborating users in order to mitigate race conditions and guarantee mutually exclusive resource usage. In floor control, a user who wishes to speak makes a request (through their user equipment unit (UE)) for the right to speak, and then waits for a response that either grants or denies the user's request. In accordance with early PoC proposals, the floor is granted only for talk burst on a first received basis, and no queuing Queue areas are places in which people queue (first-come, first-served) for goods or services. Such a group of people is known as a ''queue'' (British usage) or ''line'' (American usage), and the people are said to be waiting or standing ''in ... ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Computer Networking
A computer network is a set of computers sharing resources located on or provided by network nodes. The computers use common communication protocols over digital interconnections to communicate with each other. These interconnections are made up of telecommunication network technologies, based on physically wired, optical, and wireless radio-frequency methods that may be arranged in a variety of network topologies. The nodes of a computer network can include personal computers, servers, networking hardware, or other specialised or general-purpose hosts. They are identified by network addresses, and may have hostnames. Hostnames serve as memorable labels for the nodes, rarely changed after initial assignment. Network addresses serve for locating and identifying the nodes by communication protocols such as the Internet Protocol. Computer networks may be classified by many criteria, including the transmission medium used to carry signals, bandwidth, communications pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Multimedia
Multimedia is a form of communication that uses a combination of different content forms such as text, audio, images, animations, or video into a single interactive presentation, in contrast to traditional mass media, such as printed material or audio recordings, which features little to no interaction between users. Popular examples of multimedia include video podcasts, audio slideshows and animated videos. Multimedia also contains the principles and application of effective interactive communication such as the building blocks of software, hardware, and other technologies. Multimedia can be recorded for playback on computers, laptops, smartphones, and other electronic devices, either on demand or in real time (streaming). In the early years of multimedia, the term "rich media" was synonymous with interactive multimedia. Over time, hypermedia extensions brought multimedia to the World Wide Web. Terminology The term ''multimedia'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Data Set
A data set (or dataset) is a collection of data. In the case of tabular data, a data set corresponds to one or more database tables, where every column of a table represents a particular variable, and each row corresponds to a given record of the data set in question. The data set lists values for each of the variables, such as for example height and weight of an object, for each member of the data set. Data sets can also consist of a collection of documents or files. In the open data discipline, data set is the unit to measure the information released in a public open data repository. The European data.europa.eu portal aggregates more than a million data sets. Some other issues ( real-time data sources, non-relational data sets, etc.) increases the difficulty to reach a consensus about it. Properties Several characteristics define a data set's structure and properties. These include the number and types of the attributes or variables, and various statistical measures appli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telepointer
Telepointer is a neck-worn gestural interface system developed by MIT Media Lab student Steve Mann in 1998. Mann originally referred to the device as "Synthetic Synesthesia of the Sixth Sense". In the 1990s and early 2000s Mann used this project as a teaching example at the University of Toronto. Aremac projector Mann developed a laser-based infinite depth-of-focus projector, called an "aremac", to project onto any 3D surface without focus adjustment The projector originally displayed vector graphics rather than raster graphics. A raster graphics version based on a miniature wearable micromirror projector was developed in 2001, which could project onto the wearer's hands, other objects, or the floor or ground allowing it to work with both hand or foot gestures. See also * SixthSense SixthSense is a gesture-based wearable computer system developed at MIT Media Lab by Steve Mann in 1994 and 1997 (headworn gestural interface), and 1998 (neckworn version), and further dev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Race Conditions
A race condition or race hazard is the condition of an electronics, software, or other system where the system's substantive behavior is dependent on the sequence or timing of other uncontrollable events. It becomes a bug when one or more of the possible behaviors is undesirable. The term ''race condition'' was already in use by 1954, for example in David A. Huffman's doctoral thesis "The synthesis of sequential switching circuits". Race conditions can occur especially in logic circuits, multithreaded, or distributed software programs. In electronics A typical example of a race condition may occur when a logic gate combines signals that have traveled along different paths from the same source. The inputs to the gate can change at slightly different times in response to a change in the source signal. The output may, for a brief period, change to an unwanted state before settling back to the designed state. Certain systems can tolerate such glitches but if this output funct ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Queue Area
Queue areas are places in which people queue ( first-come, first-served) for goods or services. Such a group of people is known as a ''queue'' ( British usage) or ''line'' (American usage), and the people are said to be waiting or standing ''in a queue'' or ''in line'', respectively. (In the New York City area, the phrase ''on line'' is often used in place of ''in line''.) Occasionally, both the British and American terms are combined to form the term "queue line". Examples include checking out groceries or other goods that have been collected in a self service shop, in a shop without self-service, at an ATM, at a ticket desk, a city bus, or in a taxi stand. Queueing is a phenomenon in a number of fields, and has been extensively analysed in the study of queueing theory. In economics, queueing is seen as one way to ration scarce goods and services. Types Physical History The first written description of people standing in line is found in an 1837 book, '' The French Re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
