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NITEL Plant
Nigerian Telecommunications Limited (NITEL), was a monopoly telephone service provider in Nigeria until 1992 when the Nigerian government enacted the Nigerian Communications Commission act allowing new entrants into the telecommunications sector. During and after its years of monopoly, performance of the firm was sub-par, a behavior similar to other state owned enterprises such as NEPA and government owned water corporations. The firm was formed in 1985 as the welding together of two government entities, the telecoms arm of the Post and Telecommunications (P&T) department under the Ministry of Communications and the Nigerian External Communications (NET) In February 2008 a report by BBC News said that the Nigerian government assumed the transnational corporation did not improve performance of NITEL and therefore stopped privatization in favour of Transcorp. In 2015, the government eventually finalized a transaction that saw NITEL and Mtel's assets to NATCOM. The deal was val ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
City
A city is a human settlement of notable size.Goodall, B. (1987) ''The Penguin Dictionary of Human Geography''. London: Penguin.Kuper, A. and Kuper, J., eds (1996) ''The Social Science Encyclopedia''. 2nd edition. London: Routledge. It can be defined as a permanent and densely settled place with administratively defined boundaries whose members work primarily on non-agricultural tasks. Cities generally have extensive systems for housing, transportation, sanitation, utilities, land use, production of goods, and communication. Their density facilitates interaction between people, government organisations and businesses, sometimes benefiting different parties in the process, such as improving efficiency of goods and service distribution. Historically, city-dwellers have been a small proportion of humanity overall, but following two centuries of unprecedented and rapid urbanization, more than half of the world population now lives in cities, which has had profound consequences for g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trunking
In telecommunications, trunking is a technology for providing network access to multiple clients simultaneously by sharing a set of circuits, carriers, channels, or frequencies, instead of providing individual circuits or channels for each client. This is reminiscent to the structure of a tree with one trunk and many branches. Trunking in telecommunication originated in telegraphy, and later in telephone systems where a trunk line is a communications channel between telephone exchanges. Other applications include the trunked radio systems commonly used by police agencies. In the form of link aggregation and VLAN tagging, trunking has been applied in computer networking. Telecommunications A trunk line is a circuit connecting telephone switchboards (or other switching equipment), as distinguished from local loop circuit which extends from telephone exchange switching equipment to individual telephones or information origination/termination equipment. Trunk lines are used fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mobile Telephony
Mobile telephony is the provision of telephone services to phones which may move around freely rather than stay fixed in one location. Telephony is supposed to specifically point to a voice-only service or connection, though sometimes the line may blur. Mobile phones connect to a terrestrial cellular network of base stations ( cell sites), whereas satellite phones connect to orbiting satellites. Both networks are interconnected to the public switched telephone network (PSTN) to allow any phone in the world to be dialed. In 2010 there were estimated to be five billion mobile cellular subscriptions in the world. History According to internal memos, American Telephone & Telegraph discussed developing a wireless phone in 1915, but were afraid that deployment of the technology could undermine its monopoly on wired service in the U.S. Public mobile phone systems were first introduced in the years after the Second World War and made use of technology developed before and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Analog Signal
An analog signal or analogue signal (see spelling differences) is any continuous signal representing some other quantity, i.e., ''analogous'' to another quantity. For example, in an analog audio signal, the instantaneous signal voltage varies continuously with the pressure of the sound waves. In contrast, a digital signal represents the original time-varying quantity as a sampled sequence of quantized values which imposes some bandwidth and dynamic range constraints on the representation. The term ''analog signal'' usually refers to electrical signals; however, mechanical, pneumatic, hydraulic and other systems may also convey or be considered analog signals. Representation An analog signal uses some property of the medium to convey the signal's information. For example, an aneroid barometer uses rotary position as the signal to convey pressure information. In an electrical signal, the voltage, current, or frequency of the signal may be varied to represent the information. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
FESTAC 77
Festac '77, also known as the Second World Black and African Festival of Arts and Culture (the first was in Dakar, 1966), was a major international festival held in Lagos, Nigeria, from 15 January 1977 to 12 February 1977. The month-long event celebrated African culture and showcased to the world African music, fine art, literature, drama, dance and religion. About 16,000 participants, representing 56 African nations and countries of the African Diaspora, performed at the event. Artists who performed at the festival included Stevie Wonder from United States, Gilberto Gil from Brazil, Bembeya Jazz National from Guinea, Mighty Sparrow from Trinidad and Tobago, Les Ballets Africains, South African Miriam Makeba, and Franco Luambo Makiadi. At the time it was held, it was the largest pan-African gathering to ever take place. The official emblem of the festival was a replica crafted by Erhabor Emokpae of the royal ivory mask of Benin. The hosting of the festival led to the establ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telex
The telex network is a station-to-station switched network of teleprinters similar to a Public switched telephone network, telephone network, using telegraph-grade connecting circuits for two-way text-based messages. Telex was a major method of sending written messages electronically between businesses in the post–World War II period. Its usage went into decline as the fax machine grew in popularity in the 1980s. The term "telex" refers to the network, and sometimes the teleprinters (as "telex machines"), although point-to-point teleprinter systems had been in use long before telex exchanges were built in the 1930s. Teleprinters evolved from telegraph systems, and, like the telegraph, use binary signals, with mark and space logic represented by the presence or absence of a certain level of electric current. This differs from the analog telephone system, which used varying voltage to represent sound. For this reason, telex exchanges were entirely separate from the telephone sys ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kaduna
Kaduna is the capital city of Kaduna State, and the former political capital of Northern Region, Nigeria, Northern Nigeria. It is located in north-western Nigeria, on the Kaduna River. It is a trade Centre and a major transportation hub as the gateway to northern Nigeria, with its rail and important road network. The population of Kaduna was at 760,084 as of the 2006 Nigerian census. Rapid urbanization since 2005 has created an increasingly large population, now estimated to be around 1.3 million. The project population of people in Kaduna state as at 2021 is 8.9 million people. Etymology The etymology of the word ''Kaduna'' is said to be a corruption of the Hausa word for "crocodiles", ''Kaddani'' in the Hausa language (''kaduna'' being the plural form). Another version of the name proposes a link to the Gbagyi language, Gbagyi word/name 'Odna', meaning 'river'. History Kaduna was founded by British Empire, British colonists in 1900. The first British governor of Northern Nig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Enugu
Enugu ( ; ) is the capital city of Enugu State in Nigeria. It is located in southeastern part of Nigeria. The city had a population of 820,000 according to the 2022 Nigerian census. The name ''Enugu'' is derived from the two Igbo words ''Énú Ụ́gwụ́'', meaning "hill top", denoting the city's hilly geography. Since the 17th century the location of present-day Enugu has been inhabited by the Enugwu-Ngwo and Nike ( ) subgroup of the Igbo people; . In 1900, the Southern Nigeria Protectorate was established by the colonial administration of the British Empire. The discovery of coal by the colonists led to the creation of what was then known as the Enugu Coal Camp, named after the nearby village of Enugu Ngwo, under which coal was first found. The nearby city of Port Harcourt was created for the purpose of shipping this coal abroad, being located south of the camp. Coal mining opportunities in Enugu attracted people from throughout the region; this marked the core of the f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ibadan
Ibadan (, ; ) is the capital and most populous city of Oyo State, in Nigeria. It is the third-largest city by population in Nigeria after Lagos and Kano, with a total population of 3,649,000 as of 2021, and over 6 million people within its metropolitan area. It is the country's largest city by geographical area. At the time of Nigeria's independence in 1960, Ibadan was the largest and most populous city in the country, and the second most populous in Africa behind Cairo. Ibadan is ranked the second fastest growing city on the African continent according to the UN Human settlements research program (2022), It is also ranked third in West Africa in the tech startups index. Ibadan joined the UNESCO Global Network of Learning Cities in 2016. Ibadan is located in south-western Nigeria, inland northeast of Lagos and southwest of Abuja, the federal capital. It is a prominent transit point between the coastal region and areas in the hinterland of the country. Ibadan had been the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cable & Wireless Plc
Cable & Wireless plc was a British telecommunications company. In the mid-1980s, it became the first company in the UK to offer an alternative telephone service to British Telecom (via subsidiary Mercury Communications). The company later offered cable TV to its customers, but it sold its cable assets to NTL in 2000. It remained a significant player in the UK telecoms market and in certain overseas markets, especially in the former British colonies of the Caribbean, where it was formerly the monopoly incumbent. It was also the main supplier of communication in the British South Atlantic, including Saint Helena and the Falkland Islands. It was listed on the London Stock Exchange and was a constituent of the FTSE 100 Index. The company split in March 2010, with its international division demerging to form Cable & Wireless Communications, acquired by Liberty Global in 2015, and since spun-off in 2018 from Liberty Global to Liberty Latin America, while the remainder of the Cable & W ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
