Ubiquitous was first used as Ubiquitous computing in1988 by Mark Wesier from Xerox.
The word is from Latin which meaning ‘contemporaneously exists’ like water or air that ‘exits
anywhere, anytime’ including ‘omnipresent’.Ubiquitous computing means infrastructure
of whole industry, other words, roads, bridges, tunnels, buildings, walls and etc.
that digitalized and sharing information which evolve into computing network environment.

Application of Ubiquitous
-Social Community life
-Daily life as consumer
-Society participation
-Home Network
-Inventory management
-Medical fields
-Career
-Education

It is using Radio Waves to read & save information of the attached tag on the object and this warless frequency reading technology was found in the middle of 20th century and became popular in late 1990 for managing inventory & supply chain.
RFID composites with three parts; RFID TAG that saves data, Reader that reads data, and Antenna that transfers data.

IT 839 is a strategy found in 2004 of May by the Ministry of Information and Communication in Korea to achieve USD$20,000 of GNP. To take the leap of achieving advanced economy, the MIC selected the next generation technologies as national issue, therefore, IT839 could consists 8 services, 3 infrastructures, and 9 next generation technology to enter into new IT business that became the motive for its service and activation internationally.

a system to transmit digital broadcasting. General analog broadcasting transmit frequencies from broadcaster that helps to watch TV but digital broadcasting have to compress various information for mass transmission. Therefore, compressed frequencies cannot be transmitted by general TV.
To transmit compressed frequency, converting system might needed and this system is what we called Set-Top-Box.
Therefore, digital broadcasting means sending compressed files to the public.
To transmit public frequency you need antenna which transmit frequency to the STB and provide digital TV, in other words, High Definition TV.

Telemetic is a complex word of Telecommunication and Informatics which provide an environment to send/receive emails and web surfing in automobile that is also called ‘Automotive Telemetics’.
Drivers can check the automobile maintenance by wireless networking, and receive News, Stocks info., and T-commerce, games, and etc. with telemetic automobile.

VoIP is a Voice over Internet Protocol. This is using existed data communication packet to Internet phone converting voice data to Internet protocol data, therefore, provide an environment to us general telecommunication as Internet phone. The advantages of using VoIP is that various users can connect at the same time and its usage fee is cheaper than the existed telephone.

It is Digital Multimedia Broadcasting which is the convergence mobile multimedia broadcasting. It consists audio in as CD quality that can be used for mobile phones, PDA, or automobile navigations. Based on transmissions and network compositions it separates to public DMB and satellite DMB.

Broadband Convergence Network is a convergence of communication /broadcasting /Internet that provide multimedia service at anytime. It is 50times faster than ADSL that will elevate the quality for convergence service.

Wireless Internet Platform Interoperability WiPi is a Korean type witless Internet.
It standardized same platform among telecommunication companies since 2001 to save wasteful capital. Wireless platform in mobile phone is same as OS in PC that rolls as basic software.

It is a Wireless Broadband Internet. It compliments wired/wireless Internet and able to provide Internet at Anytime, Anywhere, with 1Mbps speed in Internet.
Setting WiBro service on PC, lab-top, PDA, and telematic transmitter provides Internet with no limit, whether you are moving or you are in the transportation system.

MVNO is Mobile Virtual Network Operator. Generally, MVNO means using Mobile Network Operator to provide mobile networking to users without wireless spectrum.

Bluetooth is a standard or standardized product that connects mobile devices and consumer products for live two-way communication in short range.
It was first investigated by Ericsson, Sweden in 1994, and in 1998 February, IBM, Intel, Nokia, and Toshiba joined Ericsson and made Bluetooth SIG(Special Interest Group). Then it became as international standard in 2001 December by Microsoft, 3Com, Lucent Technology, and Motorola.

Home server is a home network device that connects PC, PDA, TV, Audio and any other devices with consumer products and provide high speed Internet inside home as well as outside of the house.