• Korean journal of communication and information
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• v.61
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• pp.52-73
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• 2013

The purpose of this study is to investigate the effect of motivations for using smatphones and tablet PCs on using applications. For this purpose, this study took a survey targeted for smartphone and tablet PC users. The results suggested that the motivations were consisted of four dimensions ; informations, communication, specific functions and relaxation. In terms of motivations, smartphone users preferred to use specific functions and tablet PC users preferred to use them for relaxation. The motivations for using applications were depended on types of applications. Smartphone users preferred communication applications to information or entertainment ones but tablet PC users preferred entertainment and information applications to communication ones. The results also suggested that motivations for using smartphone and tablet PC had strong impact on using applications in part. The motivations for using smartphone and tablet PC worked as a strong factor for using applications. Especially, the motivations of using smartphone had a strong positive relationship with using applications.

• KIPS Transactions on Computer and Communication Systems
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• v.3 no.4
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• pp.125-128
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• 2014

OpenGL ES(OpenGL for Embedded System) 2.0 is one of the most widely used 3D graphics API(application progrma interface) standard for smart phones and tablet PCs at this time. During programming with this API, they prefer desktop environment rather than the target mobile environment, which has relatively low computing power. Thus, we need to emulate the OpenGL ES 2.0 API on the desktop PCs, where only OpenGL API libraries are available. In this paper, we present technical difficulties and their solutions to emulate OpenGL ES 2.0 on desktop PCs. Our final implementation of OpenGL ES 2.0 emulation library works on desktop PCs and passed over more than 96% of the official CTS(conformance test suites) to prove the correctness of our implementation. Additionally, for the commercially available benchmark programs, our implementation shows equivalent execution speeds to the previous commercial OpenGL ES 2.0 implementations.

• The Journal of the Korea Contents Association
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• v.15 no.7
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• pp.128-137
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• 2015

Going through rapid changes, the field of information technology (IT) has launched many innovative products. Some of those products have spread, forming a stable market, whereas others have disappeared. The purpose of the study is to purpose a theoretical model to show changes in the importance of competition factors over the three stages. Our study applied the innovation adoption stage model of the Innovation Diffusion Theory (IDT) to the industry life cycle of the Industry Life Cycle (ILC) Theory resulting in three stage of introduction, growth, and maturity, and defined a model of market characteristics according to time. By using the model, we analyzed the case of notebook computers and tablet and checked the fitness of the model. Results show that five competition factors worked differently according to time. In the introduction stage, relative functionality and relative playfulness are important competition factors. In the growth stage, compatibility is added to those two factors. In the last maturity stage, compatibility, complexity, and cost level are important competition factors.

• Smart Media Journal
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• v.7 no.2
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• pp.54-59
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• 2018

With the increasing use of touch-enabled mobile devices such as smartphones and tablet PCs, the works are done on desktop computers and smartphones, and tablet PCs perform laptops. However, due to the nature of smart devices that require portability, QWERTY keyboard is densely arranged in a small screen. This is the cause of different typographical errors when using the mechanical QWERTY keyboard. Unlike the mechanical QWERTY keyboard, which has enough space for each button, QWERTY keyboard on the touch screen often has a small area assigned to each button, so that it is often the case that the surrounding buttons are input rather than the button the user intends to press. In this paper, we propose a method to automatically correct the input errors of the QWERTY keyboard in the touch screen environment by using the n-gram language model using the word unigram and the bigram probability.

• East Asian Journal of Business Economics (EAJBE)
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• v.11 no.3
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• pp.11-25
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• 2023

Purpose - The goal of this study is to grasp the current status of the latest overseas direct purchase trends and diversified consumption tendencies, and it can be used as basic quantitative data for selecting the overseas direct purchase market and establishing policies in the e-commerce industry. This study examines the relevance between purchasing equipment and four demographics. Traits of the underlying purchasing equipment are cell phones, tablet PCs and PCs & notebooks. Research design, data, and methodology -This survey was performed in 2021 on a total of 4,537 combined panel households covering 3,510 households and 191,027 additionally set in 2019 and approximately 10,800 household members. In particular, correspondence analysis is utilized to mine the relevance among the underlying variables. Result - It is proved that the underlying demographics except age are relevant to the purchasing equipment of online overseas shopping. Especially, cell phones are closely relevant '2 million-3 million won', jointly relevant to 'service and office work' and marginally to all other academic levels except graduate school or higher. Conclusion - Under intense competition, overseas direct purchase shopping malls should strive to provide not only price competitiveness but better service and customer value in order to continue to grow.

• East Asian Journal of Business Economics (EAJBE)
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• v.11 no.2
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• pp.15-27
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• 2023

Purpose - The goal of this study is to extensively grasp the latest status of domestic home shopping and to propose useful information on the direction of development for the somewhat stagnant this market. This study investigates the relationship between purchasing media and demographic factors such as average monthly income, age and occupation. Categories of purchasing media under consideration are cell phones, tablet PCs, PCs/notebooks, phone calls and TV directly. Research design, data, and methodology -The survey was conducted in 2021 on a total of 4,537 integrated panel households including 3,510 households and 191,027 newly constructed in 2019 and about 10,800 household members aged 6 years or older in the household. The independence test and correspondence analysis as statistical tools are exploited to detect the relationship between the underlying factors. Result - It can be demonstrated that all demographic variables considered are related to the purchase media of home shopping. In particular, cell phones among purchasing media are closely associated with 2 million - 5 million won, teenagers, 20s, 40s, professionals, office workers, managers and soldiers. Conclusion - It is necessary to establish a new management strategy and related policies in order to overcome the current stagnation and ensure the continued growth of this industry.

• 한국정보교육학회:학술대회논문집
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• 2007.08a
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• pp.102-107
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• 2007

최근 각급 학교에서 전자교과서의 도입이 확대되고 있다. 본 연구에서는 1인 1타블렛 노트북 환경하에서 수학과 전자교과서 활용 수업이 학업성취도와 흥미도에 미치는 효과를 검증하였다. 검증 결과에 따르면 실험에 사용된 단원의 수학과 전자교과서 활용은 학업성취도 증진에 영향을 준다고 단정할 수는 없었으며, 수학과 흥미도 향상에도 지속적인 영향을 준다고 단정할 수 없었다. 전자교과서를 활용한 실험 반에서는 초기 흥미도의 변화가 나타났지만 그 변화는 일시적인 것으로 오래 지속되지 않았다. 따라서 수학과 영역별로 학업성취도 및 흥미도의 결과가 다르게 나타날 수 있으므로 어떤 영역이 전자교과서 내용으로 적합한지에 관한 연구가 필요하며, 전자교과서에 대한 학생의 흥미도를 지속시킬 수 있는 방안의 연구도 필요하다는 것을 알 수 있다.

• The Journal of the Korea institute of electronic communication sciences
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• v.7 no.5
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• pp.1011-1016
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• 2012

By the recent development of the mobile communication, the mobile devices like smart phones and tablet PCs, become extremely popular and the diverse augmented reality are embodied using them. In this paper, a 3D ship display system using mobile augmented reality was designed, and the drawing matching algorithm was embodied. And also, it is intended to provide the help to the active attraction of the shipbuilding orders.

• Journal of Korean Institute of Industrial Engineers
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• v.40 no.5
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• pp.501-519
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• 2014

An explosive expansion of the use of smart devices such as smart phones and tablet PCs in mobile telecommunications service is bringing about a steep increase of mobile traffic volumes. Mobile network operators or telcos are introducing the $4^{th}$ generation LTE network, which handles traffics more efficiently, to respond such enormously increasing traffics. Meanwhile, it is wondered how LTE contributes to raising a competitive edge of telcos. This paper aims at empirically testing whether the first mover of LTE acquired its competitive advantages. In this paper, we analyzed a number of telcos of 10 major countries. As a result, it turned out that there is no first mover's advantages, that is, the first mover did not have any competitive advantages in market share, profitability, and so on.

• International Journal of Contents
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• v.9 no.1
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• pp.11-17
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• 2013

Recently, online real-time web accessible mobile devices such as smartphones, tablet PCs and application services have been developing rapidly. Hospitals also need to adopt an efficient information system that can provide decent medical services under mobile computing environments to complete future medical services. This study proposes a system in which a doctor can examine a patient and make out a prescription in a ward on a real-time based on the current Order Communication Systems (OCSs) through mobile interfaces. The proposed system implements mobile web pages using HTML5, instead of a mobile app. Web processing speed can be enhanced using the web socket and web storage functions of HTML5.