1.
Computer network
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A computer network or data network is a telecommunications network which allows nodes to share resources. In computer networks, networked computing devices exchange data with other using a data link. The connections between nodes are established using either cable media or wireless media, the best-known computer network is the Internet. Network computer devices that originate, route and terminate the data are called network nodes, nodes can include hosts such as personal computers, phones, servers as well as networking hardware. Two such devices can be said to be networked together when one device is able to exchange information with the other device, Computer networks differ in the transmission medium used to carry their signals, communications protocols to organize network traffic, the networks size, topology and organizational intent. In most cases, application-specific communications protocols are layered over other more general communications protocols and this formidable collection of information technology requires skilled network management to keep it all running reliably. The chronology of significant computer-network developments includes, In the late 1950s, in 1960, the commercial airline reservation system semi-automatic business research environment went online with two connected mainframes. Licklider developed a group he called the Intergalactic Computer Network. In 1964, researchers at Dartmouth College developed the Dartmouth Time Sharing System for distributed users of computer systems. The same year, at Massachusetts Institute of Technology, a group supported by General Electric and Bell Labs used a computer to route. Throughout the 1960s, Leonard Kleinrock, Paul Baran, and Donald Davies independently developed network systems that used packets to transfer information between computers over a network, in 1965, Thomas Marill and Lawrence G. Roberts created the first wide area network. This was an precursor to the ARPANET, of which Roberts became program manager. Also in 1965, Western Electric introduced the first widely used telephone switch that implemented true computer control, in 1972, commercial services using X.25 were deployed, and later used as an underlying infrastructure for expanding TCP/IP networks. In July 1976, Robert Metcalfe and David Boggs published their paper Ethernet, Distributed Packet Switching for Local Computer Networks, in 1979, Robert Metcalfe pursued making Ethernet an open standard. In 1976, John Murphy of Datapoint Corporation created ARCNET, a network first used to share storage devices. In 1995, the transmission speed capacity for Ethernet increased from 10 Mbit/s to 100 Mbit/s, by 1998, Ethernet supported transmission speeds of a Gigabit. Subsequently, higher speeds of up to 100 Gbit/s were added, the ability of Ethernet to scale easily is a contributing factor to its continued use. Providing access to information on shared storage devices is an important feature of many networks, a network allows sharing of files, data, and other types of information giving authorized users the ability to access information stored on other computers on the network
2.
Network switch
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A network switch is a computer networking device that connects devices together on a computer network by using packet switching to receive, process, and forward data to the destination device. Unlike less advanced network hubs, a network switch forwards data only to one or multiple devices that need to receive it, a network switch is a multiport network bridge that uses hardware addresses to process and forward data at the data link layer of the OSI model. Switches for Ethernet are the most common form and the first Ethernet switch was introduced by Kalpana in 1990, Switches also exist for other types of networks including Fibre Channel, Asynchronous Transfer Mode, and InfiniBand. A switch is a device in a network that electrically and logically connects together other devices. Multiple data cables are plugged into a switch to enable communication between different networked devices, Switches manage the flow of data across a network by transmitting a received network packet only to the one or more devices for which the packet is intended. Each networked device connected to a switch can be identified by its network address and this maximizes the security and efficiency of the network. Because broadcasts are still being forwarded to all connected devices, the newly formed network segment continues to be a broadcast domain, an Ethernet switch operates at the data link layer of the OSI model to create a separate collision domain for each switch port. In full duplex mode, each switch port can simultaneously transmit and receive, in the case of using a repeater hub, only a single transmission could take place at a time for all ports combined, so they would all share the bandwidth and run in half duplex. Necessary arbitration would result in collisions, requiring retransmissions. The network switch plays an role in most modern Ethernet local area networks. Mid-to-large sized LANs contain a number of linked managed switches, in most of these cases, the end-user device contains a router and components that interface to the particular physical broadband technology. User devices may include a telephone interface for Voice over IP protocol. Segmentation involves the use of a bridge or a switch to split a larger collision domain into smaller ones in order to reduce collision probability, in the extreme case, each device is located on a dedicated switch port. In contrast to an Ethernet hub, there is a separate collision domain on each of the switch ports and this allows computers to have dedicated bandwidth on point-to-point connections to the network and also to run in full-duplex without collisions. Full-duplex mode has one transmitter and one receiver per collision domain. Switches may operate at one or more layers of the OSI model, including the data link, a device that operates simultaneously at more than one of these layers is known as a multilayer switch. In switches intended for use, built-in or modular interfaces make it possible to connect different types of networks, including Ethernet, Fibre Channel, RapidIO, ATM. This connectivity can be at any of the layers mentioned, while the layer-2 functionality is adequate for bandwidth-shifting within one technology, interconnecting technologies such as Ethernet and token ring is performed easier at layer 3 or via routing
3.
Videotelephony
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Videotelephony comprises the technologies for the reception and transmission of audio-video signals by users at different locations, for communication between people in real-time. A videophone is a telephone with a display, capable of simultaneous video. Videoconferencing implies the use of technology for a group or organizational meeting rather than for individuals. Telepresence may refer either to a high-quality videotelephony system or to meetup technology which goes beyond video into robotics, Videoconferencing has also been called visual collaboration and is a type of groupware. It is also used in commercial and corporate settings to facilitate meetings and conferences, Simple analog videophone communication could be established as early as the invention of the television. Such an antecedent usually consisted of two closed-circuit television systems connected via cable or radio. An example of that was the German Reich Postzentralamt video telephone network serving Berlin, the development of the crucial video technology first started in the latter half of the 1920s in the United Kingdom and the United States, spurred notably by John Logie Baird and AT&Ts Bell Labs. This occurred in part, at least with AT&T, to serve as an adjunct supplementing the use of the telephone, a number of organizations believed that videotelephony would be superior to plain voice communications. However video technology was to be deployed in analog television broadcasting long before it could become practical—or popular—for videophones, during the first manned space flights, NASA used two radio-frequency video links, one in each direction. TV channels routinely use this type of videotelephony when reporting from distant locations, the news media were to become regular users of mobile links to satellites using specially equipped trucks, and much later via special satellite videophones in a briefcase. This technique was very expensive, though, and could not be used for such as telemedicine, distance education. Videotelephony developed in parallel with conventional voice telephone systems from the mid-to-late 20th century, Only in the late 20th century with the advent of powerful video codecs combined with high-speed Internet broadband and ISDN service did videotelephony become a practical technology for regular use. In the 1980s, digital telephony transmission networks became possible, such as with ISDN networks, assuring a bit rate for compressed video. During this time, there was research into other forms of digital video. Many of these technologies, such as the Media space, are not as used today as videoconferencing but were still an important area of research. The first dedicated systems started to appear in the market as ISDN networks were expanding throughout the world, one of the first commercial videoconferencing systems sold to companies came from PictureTel Corp. which had an Initial Public Offering in November,1984. The company also secured a patent for a codec for full-motion videoconferencing, in 1992 CU-SeeMe was developed at Cornell by Tim Dorcey et al. In 1995 the first public videoconference between North America and Africa took place, linking a technofair in San Francisco with a techno-rave and cyberdeli in Cape Town
4.
Directional antenna
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A directional antenna or beam antenna is an antenna which radiates or receives greater power in specific directions allowing for increased performance and reduced interference from unwanted sources. Directional antennas provide increased performance over dipole antennas – or omnidirectional antennas in general – when greater concentration of radiation in a direction is desired. A high-gain antenna is an antenna with a focused, narrow radiowave beam width. This narrow beam allows more precise targeting of the radio signals. Most commonly referred to during space missions, these antennas are also in use all over Earth, most successfully in flat, open areas where no mountains lie to disrupt radiowaves. Low gain antennas are used in spacecraft as a backup to the high-gain antenna. The most common types are the Yagi antenna, the antenna, and the corner reflector antenna. Cellular repeaters often make use of directional antennas to give a far greater signal than can be obtained on a standard cell phone. Satellite Television receivers usually use parabolic antennas, for long and medium wavelength frequencies, tower arrays are used in most cases as directional antennas. When transmitting, a high-gain antenna allows more of the power to be sent in the direction of the receiver. When receiving, a high gain antenna captures more of the signal, as a consequence of their directivity, directional antennas also send less signal from directions other than the main beam. This property may be used to reduce interference, there are many ways to make a high-gain antenna - the most common are parabolic antennas, helical antennas, yagi antennas, and phased arrays of smaller antennas of any kind. Horn antennas can also be constructed with high gain, but are commonly seen. Still other configurations are possible - the Arecibo Observatory uses a combination of a line feed with a spherical reflector. Antenna gain is often quoted with respect to an antenna that radiates equally in all directions. This gain, when measured in decibels, is called dBi, conservation of energy dictates that high gain antennas must have narrow beams. For example, if a high gain antenna makes a 1 watt transmitter look like a 100 watt transmitter, in turn this implies that high-gain antennas must be physically large, since according to the diffraction limit, the narrower the beam desired, the larger the antenna must be. Antenna gain can also be measured in dBd, which is gain in Decibels compared to the maximum intensity direction of a half wave dipole
5.
Broadcasting
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Broadcasting began with AM radio, which came into popular use around 1920 with the spread of vacuum tube radio transmitters and receivers. Before this, all forms of communication were one-to-one, with the message intended for a single recipient. Over the air broadcasting is usually associated with radio and television, the receiving parties may include the general public or a relatively small subset, the point is that anyone with the appropriate receiving technology and equipment can receive the signal. The field of broadcasting includes both government-managed services such as radio, community radio and public television, and private commercial radio. The U. S. Code of Federal Regulations, title 47, part 97 defines broadcasting as transmissions intended for reception by the general public, private or two-way telecommunications transmissions do not qualify under this definition. For example, amateur and citizens band radio operators are not allowed to broadcast, as defined, transmitting and broadcasting are not the same. Transmissions using a wire or cable, like television, are also considered broadcasts. In the 2000s, transmissions of television and radio programs via streaming digital technology have increasingly been referred to as broadcasting as well, the earliest broadcasting consisted of sending telegraph signals over the airwaves, using Morse code, a system developed in the 1830s by Samuel F. B. Morse, physicist Joseph Henry and Alfred Vail and they developed an electrical telegraph system which sent pulses of electric current along wires which controlled an electromagnet that was located at the receiving end of the telegraph system. A code was needed to transmit natural language using only these pulses, Morse therefore developed the forerunner to modern International Morse code. Audio broadcasting began experimentally in the first decade of the 20th century, by the early 1920s radio broadcasting became a household medium, at first on the AM band and later on FM. Television broadcasting started experimentally in the 1920s and became widespread after World War II, satellite broadcasting was initiated in the 1960s and moved into general industry usage in the 1970s, with DBS emerging in the 1980s. Originally all broadcasting was composed of signals using analog transmission techniques but in the 2000s. In general usage, broadcasting most frequently refers to the transmission of information, Analog audio vs. HD Radio Analog television vs.9 zettabytes. This is the equivalent of 55 newspapers per person per day in 1986. Historically, there have been several methods used for broadcasting electronic media audio and/or video to the public, Telephone broadcasting. Telephone broadcasting also grew to include telephone services for news and entertainment programming which were introduced in the 1890s. These telephone-based subscription services were the first examples of electrical/electronic broadcasting, Radio broadcasting, audio signals sent through the air as radio waves from a transmitter, picked up by an antenna and sent to a receiver
6.
Satellite television
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A direct-broadcast satellite is a type of artificial satellite which usually broadcasts satellite television signals for home reception. The type of satellite television which uses direct-broadcast satellites is known as direct-broadcast satellite television or direct-to-home television and these services were to use the D-Mac and D2-Mac format and BSS frequencies with circular polarization from orbital positions allocated to each country. Before these DBS satellites, home satellite television in Europe was limited to a few channels, really intended for cable distribution, in 1977, the ITU adopted an international BSS Plan under which each country was allocated specific frequencies at specific orbital locations for domestic service. Over the years, this plan has been modified to, for example, accommodate new countries, increase coverage areas, at present, numerous countries have brought into use their BSS Plan allocations. By contrast, the term DTH can apply to similar services transmitted over a range of frequencies transmitted from satellites that are not part of any internationally planned band. The term DBS is often used interchangeably with DTH to cover both analog and digital video and audio services received by relatively small dishes, a DBS service usually refers to either a commercial service, or a group of free channels available from one orbital position targeting one country. In certain regions of the world, especially in North America, DBS is used to refer to providers of subscription satellite packages, the second commercial DBS service, Sky Television plc, was launched in 1989. Sky TV started as a four-channel free-to-air analogue service on the Astra 1A satellite, by 1991, Sky had changed to a conditional access pay model, and it launched a digital service, Sky Digital, in 1998, with analogue transmission ceasing in 2001. Since the DBS nomenclature is used in the UK or Ireland. News Corporation has a 32% stake in BSkyB, PrimeStar began transmitting an analog service to North America in 1991, and was joined by DirecTV, in 1994. At the time, DirecTVs introduction was the most successful consumer electronics debut in American history, although PrimeStar transitioned to a digital system in 1994, it was ultimately unable to compete with DirecTV, which required a smaller satellite dish and could deliver more programming. DirecTV purchased PrimeStar in 1999 and moved all of that subscribers to DirecTV equipment. In 2008, Liberty Media Corporation purchased News Corporations controlling interest in DirecTV, in 1996, EchoStars Dish Network went online in the United States and, as DirecTVs primary competitor, achieved similar success. AlphaStar also started but soon went under, astro was also started, using a direct broadcast satellite system. Dominion Video Satellite Inc. s Sky Angel launched on a platform in the United States in 1996, with its DBS service geared toward the faith. It grew from six to 36 television and radio channels of entertainment, Christian-inspirational programming. Dominion, under its corporate name Video Satellite Systems Inc. Sky Angel, although a separate and independent DBS service, used the satellites, transmission facilities
7.
Base station subsystem
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Typically a BTS for anything other than a picocell will have several transceivers which allow it to serve several different frequencies and different sectors of the cell. A BTS is controlled by a parent BSC via the station control function. The BCF is implemented as a unit or even incorporated in a TRX in compact base stations. The BCF provides an operations and maintenance connection to the management system. The functions of a BTS vary depending on the technology used. There are vendors which build their BTSs so the information is preprocessed, target cell lists are generated, the advantage in this case is less load on the expensive Abis interface. This modulation is a kind of continuous-phase frequency shift keying, antenna combiners are implemented to use the same antenna for several TRXs, the more TRXs are combined the greater the combiner loss will be. Up to 8,1 combiners are found in micro and pico cells only, frequency hopping is often used to increase overall BTS performance, this involves the rapid switching of voice traffic between TRXs in a sector. A hopping sequence is followed by the TRXs and handsets using the sector, several hopping sequences are available, and the sequence in use for a particular cell is continually broadcast by that cell so that it is known to the handsets. A TRX transmits and receives according to the GSM standards, which specify eight TDMA timeslots per radio frequency, a TRX may lose some of this capacity as some information is required to be broadcast to handsets in the area that the BTS serves. This information allows the handsets to identify the network and gain access to it and this signalling makes use of a channel known as the Broadcast Control Channel. By using directional antennas on a station, each pointing in different directions. Typically these directional antennas have a beamwidth of 65 to 85 degrees and this increases the traffic capacity of the base station whilst not greatly increasing the interference caused to neighboring cells. Typically two antennas are used per sector, at spacing of ten or more wavelengths apart and this allows the operator to overcome the effects of fading due to physical phenomena such as multipath reception. Some amplification of the signal as it leaves the antenna is often used to preserve the balance between uplink and downlink signal. The base station controller provides, classically, the intelligence behind the BTSs, typically a BSC has tens or even hundreds of BTSs under its control. The BSC handles allocation of channels, receives measurements from the mobile phones. A key function of the BSC is to act as a concentrator where many different low capacity connections to BTSs become reduced to a number of connections towards the mobile switching center
8.
Streaming media
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Streaming media is multimedia that is constantly received by and presented to an end-user while being delivered by a provider. A client end-user can use their player to begin to play the data file before the entire file has been transmitted. For example, in the 1930s, elevator music was among the earliest popularly available streaming media, the term streaming media can apply to media other than video and audio such as live closed captioning, ticker tape, and real-time text, which are all considered streaming text. As of 2017, streaming is generally taken to refer to cases where a user watches digital video content or listens to audio content on a computer screen. With streaming content, the user does not have to download the digital video or digital audio file before they start to watch/listen to it. There are challenges with streaming content on the Internet, as of 2016, two popular streaming services are the video sharing website YouTube, which contains video and audio files on a huge range of topics and Netflix, which streams movies and TV shows. Live streaming refers to Internet content delivered in real-time, as events happen, Live internet streaming requires a form of source media, an encoder to digitize the content, a media publisher, and a content delivery network to distribute and deliver the content. Live streaming does not need to be recorded at the origination point, in the early 1920s, George O. Attempts to display media on computers date back to the earliest days of computing in the mid-20th century, however, little progress was made for several decades, primarily due to the high cost and limited capabilities of computer hardware. From the late 1980s through the 1990s, consumer-grade personal computers became powerful enough to various media. These technological improvement facilitated the streaming of audio and video content to users in their homes and workplaces. The band Severe Tire Damage was the first group to live on the Internet. On June 24,1993, the band was playing a gig at Xerox PARC while elsewhere in the building, as proof of PARCs technology, the bands performance was broadcast and could be seen live in Australia and elsewhere. Microsoft Research developed a Microsoft TV application which was compiled under MS Windows Studio Suite, realNetworks was also a pioneer in the streaming media markets, when it broadcast a baseball game between the New York Yankees and the Seattle Mariners over the Internet in 1995. The first symphonic concert on the Internet took place at the Paramount Theater in Seattle, the concert was a collaboration between The Seattle Symphony and various guest musicians such as Slash, Matt Cameron, and Barrett Martin. When Word Magazine launched in 1995, they featured the first-ever streaming soundtracks on the Internet.4 in 1999, in June 1999 Apple also introduced a streaming media format in its QuickTime 4 application. It was later widely adopted on websites along with RealPlayer. In 2000 Industryview. com launched its worlds largest streaming video archive website to help promote themselves
9.
Internet Relay Chat
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Internet Relay Chat is an application layer protocol that facilitates communication in the form of text. The chat process works on a client/server networking model, IRC clients are computer programs that a user can install on their system. These clients communicate with chat servers to transfer messages to other clients, client software is available for every major operating system that supports Internet access. IRC usage has been declining steadily since 2003, losing 60% of its users, Jarkko intended to extend the BBS software he administered, to allow news in the Usenet style, real time discussions and similar BBS features. The first part he implemented was the part, which he did with borrowed parts written by his friends Jyrki Kuoppala. The first IRC network was running on a server named tolsun. oulu. fi. Oikarinen found inspiration in a system known as Bitnet Relay. This was the first irc network, Jarkko got some friends at the Helsinki University and Tampere University to start running IRC servers when his number of users increased and other universities soon followed. At this time Jarkko realized that the rest of the BBS features probably wouldnt fit in his program, Jarkko got in touch with people at the University of Denver and Oregon State University. They had their own IRC network running and wanted to connect to the Finnish network and they had gotten the program from one of Jarkkos friends, Vijay Subramaniam—the first non-Finnish person to use IRC. IRC then grew larger and got used on the entire Finnish national network—Funet—and then connected to Nordunet, in November 1988, IRC had spread across the Internet and in the middle of 1989, there were some 40 servers worldwide. In August 1990 the first major disagreement took place in the IRC world, the A-net included a server named eris. berkeley. edu. It was all open, required no passwords and had no limit on the number of connects, as Greg wumpus Lindahl explains, it had a wildcard server line, so people were hooking up servers and nick-colliding everyone. The Eris Free Network, EFnet, made the machine the first to be Q-lined from IRC. In wumpus words again, Eris refused to remove that line and it wasnt much of a fight, I got all the hubs to join, and almost everyone else got carried along. A-net was formed with the servers, EFnet was formed with the non-eris servers. History showed most servers and users went with EFnet, once ANet disbanded, the name EFnet became meaningless, and once again it was the one and only IRC network. It is around that time that IRC was used to report on the 1991 Soviet coup détat attempt throughout a media blackout and it was previously used in a similar fashion during the Gulf War
10.
DVB-T2
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DVB has been standardized by ETSI. This system transmits compressed digital audio, video, and other data in physical layer pipes, the higher offered bit rate, with respect to its predecessor DVB-T, makes it a system suited for carrying HDTV signals on the terrestrial TV channel. As of 2014, it was implemented in broadcasts in the United Kingdom, Italy, Finland, Germany, Sweden, Thailand Flanders, Serbia, Ukraine, Croatia, Denmark, Romania, in March 2006 DVB decided to study options for an upgraded DVB-T standard. The novel system should provide a minimum 30% increase in payload, the BBC, ITV, Channel 4 and Channel 5 agreed with the regulator Ofcom to convert one UK multiplex to DVB-T2 to increase capacity for HDTV via DTT. They expected the first TV region to use the new standard would be Granada in November 2009 and it was expected that over time there would be enough DVB-T2 receivers sold to switch all DTT transmissions to DVB-T2, and H.264. Ofcom published its decision on 3 April 2008, for HDTV using DVB-T2 and H.264. ITV and C4 had, as expected, applied to Ofcom for the 2 additional HD slots available from 2009 to 2012. Ofcom indicated that it found a channel covering 3.7 million households in London. Ofcom indicated that they would look for more unused UHF channels in other parts of the UK, the DVB-T2 draft standard was ratified by the DVB Steering Board on 26 June 2008, and published on the DVB homepage as DVB-T2 standard BlueBook. It was handed over to the European Telecommunications Standards Institute by DVB. ORG on 20 June 2008, the ETSI process resulted in the DVB-T2 standard being adopted on 9 September 2009. The ETSI process had several phases, but the changes were text clarifications. Since the DVB-T2 physical layer specification was complete, and there would be no further technical enhancements, a draft PSI/SI specification document was also agreed with the DVB-TM-GBS group. Prototype receivers were shown in September IBC2008 and more recent version at the IBC2009 in Amsterdam, as of 2012, Appear TV also produce DVB-T2 receivers, DVB-T2 modulators and DVB-T2 gateways. Other companies like ENKOM or IfN develop software based decoding, NORDIG published a DVB-T2 receiver specification and performance requirement on 1 July 2009. The DTGs test house, DTG Testing are testing Freeview HD products against this specification, many tests broadcast transmission using this standard are being in process in France, with local Gap filler near Rennes CCETT. DVB-T2 was tested in October 2010, in Geneva region, with Mont Salèves repeater, a mobile van was testing BER, strength, and quality reception, with special PCs used as spectrum analysers, constellation testers. The van was moving in Canton Geneva, and France, however, there were none demonstrated in TELECOM2011 at Palexpo. The following characteristics have been devised for the T2 standard, COFDM modulation with QPSK, 16-QAM, 64-QAM, OFDM modes are 1k, 2k, 4k, 8k, 16k, and 32k
11.
Router (computing)
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A router is a networking device that forwards data packets between computer networks. Routers perform the traffic directing functions on the Internet, a data packet is typically forwarded from one router to another router through the networks that constitute the internetwork until it reaches its destination node. A router is connected to two or more lines from different networks. When a data packet comes in on one of the lines, then, using information in its routing table or routing policy, it directs the packet to the next network on its journey. The most familiar type of routers are home and small office routers that simply pass IP packets between the computers and the Internet. An example of a router would be the cable or DSL router. Though routers are typically dedicated hardware devices, software-based routers also exist, when multiple routers are used in interconnected networks, the routers can exchange information about destination addresses using a dynamic routing protocol. Each router builds up a table listing the preferred routes between any two systems on the interconnected networks. A router may have interfaces for different physical types of connections, such as copper cables, fibre optic. Its firmware can also support different networking communications protocol standards, each network interface is used by this specialized computer software to enable data packets to be forwarded from one protocol transmission system to another. Routers may also be used to two or more logical groups of computer devices known as subnets, each with a different network prefix. The network prefixes recorded in the table do not necessarily map directly to the physical interface connections. It does this using internal pre-configured directives, called static routes, static and dynamic routes are stored in the Routing Information Base. The control-plane logic then strips non-essential directives from the RIB and builds a Forwarding Information Base to be used by the forwarding-plane, Forwarding plane, The router forwards data packets between incoming and outgoing interface connections. It routes them to the network type using information that the packet header contains. It uses data recorded in the routing control plane. Routers may provide connectivity within enterprises, between enterprises and the Internet, or between internet service providers networks, the largest routers interconnect the various ISPs, or may be used in large enterprise networks. Smaller routers usually provide connectivity for typical home and office networks, other networking solutions may be provided by a backbone Wireless Distribution System, which avoids the costs of introducing networking cables into buildings
12.
Object Management Group
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The Object Management Group is an international, open membership, not-for-profit technology standards consortium. OMG Task Forces develop enterprise integration standards for a range of technologies and industries. OMG modeling standards enable visual design, execution and maintenance of software, originally aimed at standardizing distributed object-oriented systems, the company now focuses on modeling and model-based standards. OMG provides only specifications, and does not provide implementations, but before a specification can be accepted as a standard by OMG, the members of the submitter team must guarantee that they will bring a conforming product to market within a year. This is an attempt to prevent unimplemented standards, other private companies or open source groups are encouraged to produce conforming products and OMG is attempting to develop mechanisms to enforce true interoperability. OMG hosts four technical meetings for its members and interested nonmembers, founded in 1989 by eleven companies, OMGs initial focus was to create a heterogeneous distributed object standard. The founding executive team included Christopher Stone and John Slitz, as of November,2012, the leadership includes Chairman and CEO Richard Soley, President and COO Bill Hoffman and Vice President and Technical Director Andrew Watson. Since 2000, OMG international headquarters has been located in Needham, in November,2012, the headquarters was moved from 140 Kendrick St to 109 Highland Ave. The goal was a portable and interoperable object model with methods. In 1997, the Unified Modeling Language was added to the list of OMG adopted technologies, UML is a standardized general-purpose modeling language in the field of object-oriented software engineering. In 2006 the Business Process Model and Notation was adopted as a standard by OMG, in 2007 the Business Motivation Model was adopted as a standard by the OMG. In 2009 OMG, together with the Software Engineering Institute at Carnegie Mellon, in 2011 OMG formed the Cloud Standards Customer Council. Founding sponsors included CA, IBM, Kaavo, Rackspace and Software AG, CSCC is open to all end-user organizations. In September,2011, the OMG Board of Directors unanimously voted to adopt the Vector Signal, VSIPL and VSIPL++ contain hundreds of functions used for common signal processing kernel and other computations. These functions include basic arithmetic, trigonometric, transcendental, signal processing, linear algebra, the VSIPL family of libraries has been implemented by multiple vendors for a range of processor architectures, including x86, PowerPC, Cell, and NVIDIA GPUs. VSIPL and VSIPL++ are designed to high performance, increase programmer productivity. Additionally, VSIPL++ was designed from the start to support for parallelism. Late 2012 early 2013, The Object Management Group Board of Directors adopted the Automated Function Point specification, the push for adoption was led by the Consortium for IT Software Quality
