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A mindmap of ICTs. Information and communications technology (ICT) is an extensional term for information technology (IT) that stresses the role of unified communications and the integration of telecommunications (telephone lines and wireless signals) and computers, as well as necessary enterprise software, middleware, storage and audiovisual, that enable users to access, store, transmit ...
Telecommunication is a compound noun of the Greek prefix tele- (τῆλε), meaning distant, far off, or afar, [6] and the Latin verb communicare, meaning to share. Its modern use is adapted from the French, [7] because its written use was recorded in 1904 by the French engineer and novelist Édouard Estaunié.
Public switched telephone network. The public switched telephone network ( PSTN) is the aggregate of the world's telephone networks that are operated by national, regional, or local telephony operators. It provides infrastructure and services for public telephony. The PSTN consists of telephone lines, fiber-optic cables, microwave transmission ...
PT Telekomunikasi Indonesia (Persero) Tbk (lit. ' Telecommunications Indonesia State-owned Public Limited Company ') officially shortened into PT Telkom Indonesia (Persero) Tbk, also simply known as Telkom, is an Indonesian multinational telecommunications conglomerate with its corporate headquarters in Bandung and its operational headquarters in the Telkom Landmark Complex in Jakarta.
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Wireless communication (or just wireless, when the context allows) is the transfer of information ( telecommunication) between two or more points without the use of an electrical conductor, optical fiber or other continuous guided medium for the transfer. The most common wireless technologies use radio waves.
In the U.S., ultra-wideband refers to radio technology with a bandwidth exceeding the lesser of 500 MHz or 20% of the arithmetic center frequency, according to the U.S. Federal Communications Commission (FCC). A February 14, 2002 FCC Report and Order [58] authorized the unlicensed use of UWB in the frequency range from 3.1 to 10.6 GHz.
Communication is commonly defined as the transmission of information. Its precise definition is disputed and there are disagreements about whether unintentional or failed transmissions are included and whether communication not only transmits meaning but also creates it.