Personal computers and society

The University of Southern California (USC) has initiated a technology assessment of the personal computer, partially supported by the US National Science Foundation. The ultimate purpose of a technology assessment is to help provide a more human future with less of a shock. The technology assessment at USC is directed towards examining the potential impacts of personal computers and identifying the public policy issues associated with these possibilities. This report explains the major factors being explored during the assessment.     

Interplay of computer and paper-based sketching in graphic design

The purpose of this study is to investigate student designers’ attitude and choices towards the use of computers and paper sketches when involved in a graphic design process. 65 computer graphic technology undergraduates participated in this research. A mixed method study with survey and in-depth interviews was applied to answer the research questions. This result shows that sketches and computers as design tools help students generate ideas in the early stage of design. Students’ preferences to use sketches or computers differ, since each tool has its own advantages and disadvantages.     

The Effect of Computer Use on Work Discretion and Work Intensity: Evidence from Europe

This article studies changes in computer use and work discretion and intensity in the EU-15 between 1995 and 2015. We document that while the proportion of workers using computers has increased from 40 per cent to more than 60 per cent, there remain significant differences between countries even within the same occupations. Several countries have seen a significant increase in computer use even in low-skilled occupations generally assumed to be less affected by technology. Overall, the great increase in computer use between 1995 and 2015 coincided with a period of modest deterioration of job quality in the EU-15 as a whole, as work discretion declined for most occupational and educational groups, while work intensity increased slightly for most of them. Our OLS results exploiting variation within country-occupation cells point to a sizeable positive effect of computer use on work discretion, but to no effect on work intensity. Our instrumental variable estimates point to an even more benign effect of computer use on job quality as measured by work discretion and work intensity. Hence, the results suggest that the (moderate) deterioration in the quality of work observed in the EU-15 between 1995 and 2015 has occurred despite the spread of computers, rather than because of them.     

Attitudes of Design Students Toward Computer Usage in Design

The success of efforts to integrate technology with design education is largely affected by the attitudes of students toward technology. This paper presents the findings of a research on the attitudes of design students toward the use of computers in design and its correlates. Computer Aided Design (CAD) tools are the most widely used computer applications in design. An instrument was developed and applied for the first time to relate computer attitude to design field through CAD. Interior architecture undergraduates of Bilkent University participated in the survey. As a result, students’ attitudes toward the use of computers in design were found to be positive. A significant gender difference in attitudes toward computers was observed with males having more positive attitudes than females. The results also revealed that students’ attitude toward computer usage in design was highly related to their general attitude toward computers, but it was not correlated with their perception of instructors’ attitude toward the use of computers in design.     

Strategies for marketing computers and related products

Hi-tech industries are emerging and experiencing a very challenging as well as frustrating time. One of the hi-tech industries, computers have accumulated a substantial amount of marketing experience that may be used for other hi-tech industries. This article inductively constructs three models for computers and hi-tech marketing. The first model emphasizes hi-tech product characteristics and their implications in developing a marketing strategy. The second model explores entry strategies for computers and perhaps for other hi-tech companies. It emphasizes the fact that just any company cannot successfully enter the computer and other hi-tech markets without very careful analyses of the dynamics of hi-tech markets. Finally, the third model based on present experiences and inductive reasoning emphasizes the key components of successful future marketing strategies for this type of product.     

Competition in the Computer Industry: Online Versus Retail

This paper estimates the price sensitivity of individuals' choice of whether to buy computers online versus in retail stores using a new data source on the computer purchases of more than 20,000 people. The paper first fits hedonic regressions for the retail price of computers in a local area and then examines how that price influences the probability of buying online. The results indicate that the decision is sensitive to the relative price of retail computers and it varies by type of customer and type of computer. Conditional on buying a computer, the elasticity of buying remotely with respect to retail store prices is about 1.5.     

Visual Basic在系统机和前端机群间串行通讯中的应用

利用VB中的通讯控作MSCOMM实现系统机和前端单片机群之间的串行通讯,探讨了上位机和下位机数据传输格式的统一问题,并以一化工厂液位测控系统上、下位机之间串行通讯为例给出了相关程序。     

Windows95/98系统的维护与管理

针对高校学生用机中存在的问题 ,从维护和管理的角度提出了一些措施和办法 ,包括系统的备份和一些参数的设备     

Patent characteristics and the age-value relationship: study of OceanTomo auctioned US singleton patents for the period 2006–2008

The article characterizes high and low value patents based on the non-linearity of the age-value relationship, as an attempt to provide some statistical understanding on the difference in the value of patent characteristics over time. A set of 138 US singleton patents, mainly from the computers and communication field, successfully auctioned by an US auction firm called OceanTomo during 2006–2008 forms the data. Analysis shows evidence of non-linearity in the patent age-value relationship and the sensitivity of patent characteristics to temporal dimension in explaining value of patented knowledge. The U-shaped temporal value of knowledge, identifying older patented knowledge as more valuable, thus, finds support. Furthermore, patents sold in their first half exhibit more lag, less patent scope and less forward citations. Patents sold by firms dominate the younger patent, while the older patent cohort finds more patents sold by individuals. These and other results are discussed for their significance for patent sale. We acknowledge the limitations of a small sample size. Nevertheless, the article provides statistical understanding on the potential characteristics of high and low value patents, explored through the non-linear age value dynamics.     

两台Intel 86/310微型机通信控制软件的研制与实现

本文针对一种通信网对网控设备通信控制器的要求,采用两台Intel86/310微型机,开发研制了通信控制软件,并成功地用于该通信网。文中介绍了该软件的设计思想,实现方法以及程序流程图。     

Applications of computers in R & D management

R & D Managers use computers extensively in solving technical problems. This paper examines the use they make of computers in solving Management problems. Applications of computers to various aspects of R & D programme formulation, project planning, technical information storage and retrieval, management information systems, and computer-aided training have been investigated by many companies and, in some cases, have been implemented. Some of the techniques have become well established but others are still at a development stage. No attempt has been made to evaluate the techniques described.
This topic was the subject of a study by a Working Group of the European Industrial Research Management Association (EIRMA), and a report 'Computers as Aids to R & D Management' was distributed to members of the Association. EIRMA has now agreed to release information contained in that report and this paper is based on that information updated by the author, who was Chairman of the EIRMA Working Group.     

Applications of computers in R & D management

R & D Managers use computers extensively in solving technical problems. This paper examines the use they make of computers in solving Management problems. Applications of computers to various aspects of R & D programme formulation, project planning, technical information storage and retrieval, management information systems, and computer-aided training have been investigated by many companies and, in some cases, have been implemented. Some of the techniques have become well established but others are still at a development stage. No attempt has been made to evaluate the techniques described. This topic was the subject of a study by a Working Group of the European Industrial Research Management Association (EIRMA), and a report ‘Computers as Aids to R & D Management’ was distributed to members of the Association. EIRMA has now agreed to release information contained in that report and this paper is based on that information updated by the author, who was Chairman of the EIRMA Working Group.     

The link between computer use and job satisfaction: The mediating role of job tasks and task discretion

This study focuses on the consequences of the use of computerized work equipment (hereafter: computer use) on the content and quality of work. It investigates, first, the relationship between computer use and both job tasks and task discretion and, second, their mediating role for the relationship between computer use and job satisfaction. With our German-UK comparison, we contribute to the long-standing debate on the upskilling/de-skilling nature of the use of technology and its repercussions on the quality of work. We analyse data from the Skills and Employment Surveys for the UK and the BIBB/BAuA Employment Surveys for Germany using structural equation modelling. In line with the literature on routine-biased technological change, we show that computers are complementary to the performance of less routine and more abstract cognitive tasks and that this relationship is conducive to a higher level of task discretion and job satisfaction in both countries. Accounting for differences in job tasks performed, we find a negative direct effect of computer use on both task discretion and job satisfaction in the United Kingdom but not in Germany. Our results indicate that the ultimate effect of computer use on both task discretion and job satisfaction depends on the institutional contexts in which technology is introduced.     

用Win98实现局域网中的Internet共享连接

通过介绍“Windows98第 2版”里作为标准组件而集成的“Internet连接共享服务”( ICS) ,利用 Windows 98提供的 Internet连接共享 ,实现局域网中所有安装了Windows95 /98的计算机共享网络中已有的 Internet拨号连接。     

Does ICT in schools affect residential adoption and adult utilization outside schools?

Policymakers around the world are considering whether to invest in putting information and communication technology (ICT) in schools, and how. While educational impact is likely to be the primary objective, such investments can also affect residential adoption and adult utilization of ICT in the communities, thereby reducing the digital divide. Using a census survey of Thailand for a time when ICT was available in roughly half of the nation’s schools, this study employs logistic regression and propensity score matching (PSM) to show that placing ICT in schools does have significant spill-over effects outside schools. This effect is larger for ICT in primary schools than secondary schools, and larger in schools with both Internet and computers than schools with just computers. The effects are observed in households of all incomes and educational levels. Considering these spill-over effects when allocating resources should lead to greater welfare gains for the amount of resources spent. The study also finds that there is a sizable portion of the adult population that chooses not to use ICT even after adopting this ICT in their households for their children, thereby eliminating any barriers to use related to cost and convenience. For this group, policy-makers should seek ways to decrease other impediments to ICT use, such as increasing ICT literacy through training.     

机房计算机不开箱维护技术

通过制作并口电缆、串口电缆以及网线等方法 ,利用 GHOST软件 ,在不打开机箱的情况下 ,对机房中装有硬盘还原卡和未装硬盘还原卡 ,以及有网卡和无网卡的计算机进行维护的技术     

Access to and penetration of ICT in rural Thailand

This paper presents an econometric study of information and communication technology (ICT) in all 70,000 rural villages in Thailand, where the ICT considered consists of fixed-line telephone service, mobile telephone service, public telephones, computers, and Internet service. The results may provide information that helps policymakers decide where to put limited resources to promote ICT, and helps profit-seeking ICT companies target regions that maximize revenues. The study found that education is far more important than income in predicting the percentage of households who adopt ICT services, and that some unexpected variables such as the penetration of pickup trucks are useful predictors as well. Even in areas where fixed-line phone service is available, 70% of households with computers choose not to become Internet subscribers, although many presumably have enough money and technical knowledge. By separating availability from penetration of ICT, the study found that they can have different predictors, which means that researchers who do not separate them may get misleading results. There is no evidence showing mobile telephone service as a substitute for fixed-line telephone service. Also, public telephone service had little or no impact as a substitute for fixed-line or mobile telephone service, so phone companies need not fear that deployment of more public telephones will decrease their subscribership. Finally, there appears to be significant unmet demand for telephone service in rural Thailand where the infrastructure does not yet exist.     

物料配比中的微机控制系统

介绍了由微机、ＡＤＣ芯片、Ｉ／Ｏ芯片及其他辅助芯片来实现颗粒物料配比的一种方法。     

Project2003在建筑工程进度计划管理中的应用

要作好项目管理，需要建立一套行之有效的项目控制系统，要应用网络计划，就需要应用计算机。在建筑工程施工管理中如何使用项目管理软件，章从创建任务、调整任务到输出图表等一系列过程，作了详细介绍。