• Title, Summary, Keyword: Personal computer

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Personal Computer Based Design for the Sequential Machines (개인용 컴퓨터를 사용한 순차제어기의 설계)

  • Jo, Dong-Seop;Kim, Min-Hwan;Kim, Jun-Hyeon
    • Proceedings of the KIEE Conference
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    • pp.257-261
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    • 1985
  • This paper deals with the personal computer based design for the sequential machines. Most part of sequential machine design have been implemented by using general purpose microprocessors in order to obtain the specific unctions required for their system. But, they have some difficulties in design stages. Knowledge of systems design method and high technology are basically applied to all the design stages.. Therefore ready made microcomputer system for personal use, personal computer, can be transformed to sequential machines by using the corresponding softwares and built-in personal computer input/output ports. Following the state transition diagram or table, we can obtain the ROM type of sequential machines directly and need not to design input/output interface except actuators and samplers because of capability of personal computer. Our main purpose of this design method are quick, flexible, reliable, modifiable circuit design of the sequential machines. In this paper, we use APPLE-II plus personal computer as target machine.

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The Design of Controller System for a Personal Computer Using Echo (에코를 활용한 개인용 컴퓨터 조작 시스템의 설계)

  • Lee, Tae Jun;Kim, Dong Hyun;Ahn, SungWoo
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • pp.143-144
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    • 2018
  • Generally, to operate the IT devices, a user should exploit his eye and hand. It is so difficult for the most disabled user with the limited vision or hand to manipulate a personal computer and to buy devices assisting the manipulation due to the expensive price. In this paper, we propose the voice system manipulating the personal computer using the Amazon echo. The proposed system controls the mouse of the personal computer and activates functions of the personal computer using the skill stored in the Amazon web service.

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Personal Computer Based System for the Measurement and Control of Environmental Factors (Personal Computer를 이용한 環境因子의 計測 및 制御 System에 관한 연구)

  • Lee, Hyeong-Choon;Kim, Tae-Sik
    • Journal of Environmental Health Sciences
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    • v.13 no.1
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    • pp.35-40
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    • 1987
  • Personal computer based measurement and control system was constructed and tested in order to fiexibly apply it to laboratoy experiments in which environmental factors such as temperature, humidity, pH, DO and gases should be measured and controlled. Personal computer FC-80 was successively interfaced to the input-output system made up of PPI, A/D converter, D/A converter, programmable timer and USART boards. To test the system, pH control experiment was executed and the pH of the solution could be measured, expressed on the monitor and controlled at constant value.

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Development of Programs for Menu Planning by Using Personal Computer (PERSONAL COMPUTER를 이용한 식단 관리의 전산화 연구)

  • 문수재
    • Journal of the Korean Home Economics Association
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    • v.24 no.4
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    • pp.69-74
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    • 1986
  • The present study investigated the use of a computerized program for construction of menu. The Computer used for this study was the personal computer type IBM-PC OA-16 XT. The program itself used the computer's“DBASE Ⅲ”. Preparation for computer programming: 1) Assigned special code number of menu and input data 2) Assigned special code number of recipe and input data 3) Menu construction The computerized program for the planning of menu according to user's condition was developed.

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A Study on the Harmonics and Voltage Sags Effect by the Series Resonant Filter Application for Personal Computer Loads (컴퓨터 부하의 직렬 동조 필터 적용에 의한 고조파 및 순간전압강하 영향에 관한 연구)

  • Seo, Beom-Gwan;Kim, Kyoung-Chul;Lee, Geun-Joon
    • Proceedings of the KIEE Conference
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    • pp.460-461
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    • 2006
  • Computer Loads can be found in all of modern society. The switching mode power supplies used in personal computers are major sources of harmonic currents. Harmonic currents can cause lots of harmonic problems such as disruption in computer performance. A series resonant filter is very effective in harmonic reduction for personal computer loads. Voltage sags are short duration reductions in rms voltage. The main causes of voltage sags are faults, motor starting, and transformer energizing. Personal computers are another example of devices sensitive to voltage sags. A serious voltage sag at the terminals way lead mis-operation of the equipment. This paper presents an in depth analysis to evaluate the effect of harmonics reduction based on the IEC 61000-3-2 and the effect of voltage sag using ITI curve by applying a series resonant filter for personal computer loads.

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The Development of Personal Computer Control System Using Voice Command (음성 명령을 이용한 개인용 컴퓨터 조작 시스템의 구현)

  • Lee, Tae Jun;Kim, Dong Hyun
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • pp.101-102
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    • 2018
  • Users who using computer may experience fatigue or sickness on their wrists if they use the keyboard and mouse for a long time. People with physical disabilities will find it difficult to work with the keyboard and mouse. There is a problem in that the substitute product for solving this is limited in function or expensive. In this paper, we development a system for controlling a personal computer with voice commands using the Amazon Echo and Amazon Web Services lambda functions. The implemented system processes the user's voice commands from the Amazon web server and sends them to the personal computer. The personal computer processes the received command and uses it to operate the application program.

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Construction of Personal Computer CAE System Support to Insulation Design (절연설계(絶緣設計)를 지원(支援)하는 Personal CAE 시스템의 구축(構築))

  • Choi, Young-Chan;Ohsima, Hirotsugu;Ohyama, Ryu-Ichiro;Kaneko, Kiyoji
    • Proceedings of the KIEE Conference
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    • pp.922-924
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    • 1992
  • This paper presents a CAE(Computer Aided Engineering)system for solving electrostatic field problems by means of a small size computer such as a personal computer. The system software operated on the personal computer is composed of a CAD(Computer aided Design), electric field analysis by using FEM(Finite Element Method)and DB(Data Base)of insulating materials. In addition, we discuss an application of the system to analyzing electric field such as parallel plate electrodes with an insulation spacer, which result suggests that the visualization of electric field distribution and tolerance for insulation strength enables us to assure a simplified evaluation of the insulating design.

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Personal Computer System

  • 박인보
    • Water for future
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    • v.21 no.4
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    • pp.351-352
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    • 1988
  • 지난 20여년 동안 수공학 분야에 있어서도 computer system은 단순히 계산을 위한 목적뿐만 아니라 자료의 분석, 정리와 결과의 다양한 출력에 있어 활발히 이용되어져 왔다. 특히 최근 몇년동안에는 personal computer가 기존의 중형, 대형 computer의 많은 역활을 분담 또는 전담하게 되었고 personal computer의 저렴한 가격, 취급의 용이한 점, 주변장치의 다양성, software의 충분한 공급등의 특징으로 인해 수공학 분야에서도 personal computer의 역활은 점점 증대되어 가고 있다. 이에 많은 수공기술인들이 이미 pc를 사용하고 있거나 혹은 관심을 갖고 있는 것으로 추측되어 국내 시장에서 쉽게 구입할 수 잇는 pc에 대해서 같은 이용자의 입장에서 pc에 관한 정보를 제공하고자 한다. 물론 시중에는 여러가지 model의 pc가 보급되어 있으나 여기서는 가장 범용으로 손쉽게 구할 수 있고 그 처리속도나 용량등이 전문적인 기술인에 적합하다고 판단되는 IBM-XT / AT 와 유사한 system에 대해서만 언급하고자 한다.

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Applying Hedonic Price Model to Analyzing Non-market Characteristic of Personal Computer (헤도닉 가격모형을 이용한 개인컴퓨터의 비시장 속성에 대한 가치추정)

  • 신승식;곽승준;유승훈
    • Journal of Korea Technology Innovation Society
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    • v.3 no.3
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    • pp.85-101
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    • 2000
  • The purpose of this study is to test whether prices of personal computers reflect their varying degrees of non-marketable characteristics including after-sales service. This purpose is carried out using the hedonic price model. In this paper, we estimated 74 functional forms of hedonic price model using the quadratic Box-Cox transformation function and selected one based on the three criteria: expected signs, the statistical significance of estimated coefficients, and goodness of fit in terms of root-mean-square-percentage-error. In this study, we found hat as the after-sales service level increases the price of the personal computer increases. This result is consistent with the hypothesis that the less after-sales service offered with a personal computer, the less consumers are willing to pay for the personal computer, when all else remain constant. This finding shows that since the market works indirectly to influence pricing, the need to rely on consumer protection legislation to guarantee after-sales service is lessened. This study also found that after-sales service supported by each personal computer producer is not a free service, thus produces have a profit incentive for providing after-sales service.

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Toward a Social Sciences Methodology for Electronic Survey Research on the Internet or Personal Computer check (사회과학 연구에 있어 인터넷 및 상업용 통신망을 이용한 전자설문 조사방법의 활용)

  • Hong Yong-Gee;Lee Hong-Gee;Chae Su-Kyung
    • Management & Information Systems Review
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    • v.3
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    • pp.287-316
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    • 1999
  • Cyberspace permits us to more beyond traditional face-to-face, mail and telephone surveys, yet still to examine basic issues regarding the quality of data collection: sampling, questionnaire design, survey distribution, means of response, and database creation. This article address each of these issues by contrasting and comparing traditional survey methods(Paper-and-Pencil) with Internet or Personal Computer networks-mediated (Screen-and-Keyboard) survey methods also introduces researchers to this revolutionary and innovative tool and outlines a variety of practical methods for using the Internet or Personal Computer Networks. The revolution in telecommunications technology has fostered the rapid growth of the Internet all over the world. The Internet is a massive global network and comprising many national and international networks of interconnected computers. The Internet or Personal Computer Networks could be the comprehensive interactive tool that will facilitate the development of the skills. The Internet or Personal Computer Networks provides a virtual frontier to expand our access to information and to increase our knowledge and understanding of public opinion, political behavior, social trends and lifestyles through survey research. Comparable to other technological advancements, the Internet or Personal Computer Networks presents opportunities that will impact significantly on the process and quality of survey research now and in the twenty-first century. There are trade-offs between traditional and the Internet or Personal Computer Networks survey. The Internet or Personal Computer Networks is an important channel for obtaining information for target participants. The cost savings in time, efforts, and material were substantial. The use of the Internet or Personal Computer Networks survey tool will increase the quality of research environment. There are several limitations to the Internet or Personal Computer Network survey approach. It requires the researcher to be familiar with Internet navigation and E-mail, it is essential for this process. The use of Listserv and Newsgroup result in a biased sample of the population of corporate trainers. However, it is this group that participates in technology and is in the fore front of shaping the new organizations of interest, and therefore it consists of appropriate participants. If this survey method becomes popular and is too frequently used, potential respondents may become as annoyed with E-mail as the sometimes are with mail survey and junk mail. Being a member of the Listserv of Newsgroup may moderate that reaction. There is a need to determine efficient, effective ways for the researcher to strip identifiers from E-mail, so that respondents remain anonymous, while simultaneously blocking a respondent from responding to a particular survey instrument more than once. The optimum process would be on that is initiated by the researcher : simple, fast and inexpensive to administer and has credibility with respondents. This would protect the legitimacy of the sample and anonymity. Creating attractive Internet or Personal Computer Networks survey formats that build on the strengths of standardized structures but also capitalize on the dynamic and interactive capability of the medium. Without such innovations in survey design, it is difficult to imagine why potential survey respondents would use their time to answer questions. More must be done to create diverse and exciting ways of building an credibility between respondents and researchers on the Internet or Personal Computer Networks. We believe that the future of much exciting research is based in the Electronic survey research. The ability to communicate across distance, time, and national boundaries offers great possibilities for studying the ways in which technology and technological discourse are shaped. used, and disseminated ; the many recent doctoral dissertations that treat some aspect of electronic survey research testify to the increase focus on the Internet or Personal Computer Networks. Thus, scholars should begin a serious conversation about the methodological issues of conducting research In cyberspace. Of all the disciplines, Internet or Personal Computer Networks, emphasis on the relationship between technology and human communication, should take the lead in considering research in the cyberspace.

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