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《中国计算机用户》2003,(29):30-30
应用需求:在一个办公室中,每个使用电脑办公的员工在工作中都会有打印输出的需求,由于不可能为每台电脑都配置一台打印机,因此把打印机作为硬件资源在网络中共享给办公集体是既节省办公空间又便于维护的最佳方式。虽然一些用户采用通过并口或USB口将这些打印机连接到了PC或服务器,再通过网络共享这些打印机的方式,但这并不是真正意义上的网络打印,这种方案在打印过程中需要占用连接打印机的主机资源,无法体现网络打印快速经济的优势。配置了网络打印服务器的打印机,可以避免上述现象的发生,满足办公中高速打印的需求。 应用环境:HP JetDirect 200m能够使低端打印机实现网络打印功能,具有快速,稳定的打印特性。通过HP Web JetAdmin管理工具,HP JetDirect 200m具备了网络管理特性,使管理员能够随时掌握HP JetDirect 200m的情况及时解决故障。 相似文献
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网络技术的发展和普及,极大地方便了对计算机系统资源的共享。通过网络共事,可以提高硬件设备和网络资源利用率,降低拥有设备的成本。在企业中,网络打印共享的应用比较广泛。在Unix网络中,实现打印机共享的常用方法有2种;(1)专用打印服务器模式,即打印机通过网络打印服务器连接到网络中供网络用户共享;(2)PC机连接模式,即将打印机配置到网络中的一台PC机或服务器上。PC机和服务器身兼两职,除完成自身的“本职工作”外,还扮演“打印服务器”的角色。 相似文献
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《互联网周刊》2000,(22):38-38
网络打印误区之一:网络打印=PC(文件服务器) 网络打印机。将一台打印机直接连接到办公局域网中的某一台终端PC或是文件服务器上,其他员工通过网络来访问这台打印机,实现所谓网络打印。但是,这种做法对文件服务器或PC要求非常高;而且利用文件服务器充当网络打印的连接,也会占用很多服务器空间,造成资源浪费。 网络打印误区之二:网络打印=外置网络打印服务器 激光打印机。通过此方案可以实现基本的网络打印,但不能真正享受到网络打印所带来的好处。据专家介绍,外置网络打印服务器和内置网络打印服务器在网络打印环境中相差非常大,外置服务器几乎就实现不了网络打印的数据传输要求。 相似文献
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无线功能,已经在很多产品上实现。无线网络打印多功能一体机,更是成为很多打印机厂商在近两年推广的重点。无线网络打印功能,就是无需再通过网线连接打印机实现打印数据的输入,而是通过机身内置的无线模块来无线传输数据,在打印机上实现文件的打印功能。但我要告诉你们的是,实现打印机的无线打印功能,通过我们常用的外接路由器连接打印机,也依然可以实现。机身内置无线模 相似文献
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Datamax-O·Neil 《电子商务世界》2014,(4):59-60
移动打印是一个专业词汇,是指能够在无物理连接或不限制固定地点的情况下打印标签或收据.移动打印由三个部分组成:发出打印指令的设备、连接方式和打印机.用户用来发出打印指令的设备通常是一台超级耐用的移动电脑,可以在极端环境下操作.移动打印机同样质量过硬,可以满足每一次打印需求,即使从高处跌落多次也无妨.至于连接移动电脑和打印机:最新的移动打印机有多种连接选择,包括串行接口和USB接口,还有蓝牙以及无线连接.99%以上的情况下,用户可以通过蓝牙功能连接电脑和移动打印机. 相似文献
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正挑战题描述苹果iPhone手机有一项AirPrint无线打印功能,但很少有人使用,因为还需要配置一台专有的AirPrint技术的打印机,而配有AirPrint技术的打印机价格不菲。那么是否可以通过其他方式让普通打印机也能实现AirPrint无线打印呢?(题号:20142302)解题思路普通打印机要实现AirPrint无线打印,其实很简单,只需要一台普通的电脑作为AirPrint技术服务器,并连接到无线网络中且与iOS设备为同一段网络,再把服务器连接的打印机共享即可。 相似文献
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S. Shaw 《Journal of Computer Assisted Learning》1993,9(2):93-99
Abstract This paper describes an approach to the design of interactive multimedia materials being developed in a European Community project. The developmental process is seen as a dialogue between technologists and teachers. This dialogue is often problematic because of the differences in training, experience and culture between them. Conditions needed for fruitful dialogue are described and the generic model for learning design used in the project is explained. 相似文献
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European Community policy and the market 总被引:1,自引:0,他引:1
C. Lloyd 《Journal of Computer Assisted Learning》1993,9(2):86-91
Abstract This paper starts with some reflections on the policy considerations and priorities which are shaping European Commission (EC) research programmes. Then it attempts to position the current projects which seek to capitalise on information and communications technologies for learning in relation to these priorities and the apparent realities of the marketplace. It concludes that while there are grounds to be optimistic about the contribution EC programmes can make to the efficiency and standard of education and training, they are still too technology driven. 相似文献
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融合集成方法已经广泛应用在模式识别领域,然而一些基分类器实时性能稳定性较差,导致多分类器融合性能差,针对上述问题本文提出了一种新的基于多分类器的子融合集成分类器系统。该方法考虑在度量层融合层次之上通过对各类基多分类器进行动态选择,票数最多的类别作为融合系统中对特征向量识别的类别,构成一种新的自适应子融合集成分类器方法。实验表明,该方法比传统的分类器以及分类融合方法识别准确率明显更高,具有更好的鲁棒性。 相似文献
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Wayne O’Brien Author Vitae 《Journal of Systems and Software》2008,81(11):1997-2013
Development of software intensive systems (systems) in practice involves a series of self-contained phases for the lifecycle of a system. Semantic and temporal gaps, which occur among phases and among developer disciplines within and across phases, hinder the ongoing development of a system because of the interdependencies among phases and among disciplines. Such gaps are magnified among systems that are developed at different times by different development teams, which may limit reuse of artifacts of systems development and interoperability among the systems. This article discusses such gaps and a systems development process for avoiding them. 相似文献
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This paper presents control charts models and the necessary simulation software for the location of economic values of the control parameters. The simulation program is written in FORTRAN, requires only 10K of main storage, and can run on most mini and micro computers. Two models are presented - one describes the process when it is operating at full capacity and the other when the process is operating under capacity. The models allow the product quality to deteriorate to a further level before an existing out-of-control state is detected, and they can also be used in situations where no prior knowledge exists of the out-of-control causes and the resulting proportion defectives. 相似文献
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Going through a few examples of robot artists who are recognized worldwide, we try to analyze the deepest meaning of what
is called “robot art” and the related art field definition. We also try to highlight its well-marked borders, such as kinetic
sculptures, kinetic art, cyber art, and cyberpunk. A brief excursion into the importance of the context, the message, and
its semiotics is also provided, case by case, together with a few hints on the history of this discipline in the light of
an artistic perspective. Therefore, the aim of this article is to try to summarize the main characteristics that might classify
robot art as a unique and innovative discipline, and to track down some of the principles by which a robotic artifact can
or cannot be considered an art piece in terms of social, cultural, and strictly artistic interest.
This work was presented in part at the 13th International Symposium on Artificial Life and Robotics, Oita, Japan, January
31–February 2, 2008 相似文献
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David Poole 《Computational Intelligence》1989,5(2):97-110
Although there are many arguments that logic is an appropriate tool for artificial intelligence, there has been a perceived problem with the monotonicity of classical logic. This paper elaborates on the idea that reasoning should be viewed as theory formation where logic tells us the consequences of our assumptions. The two activities of predicting what is expected to be true and explaining observations are considered in a simple theory formation framework. Properties of each activity are discussed, along with a number of proposals as to what should be predicted or accepted as reasonable explanations. An architecture is proposed to combine explanation and prediction into one coherent framework. Algorithms used to implement the system as well as examples from a running implementation are given. 相似文献
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Watts S. Humphrey 《Annals of Software Engineering》2002,14(1-4):39-72
This paper provides the author's personal views and perspectives on software process improvement. Starting with his first work on technology assessment in IBM over 20 years ago, Watts Humphrey describes the process improvement work he has been directly involved in. This includes the development of the early process assessment methods, the original design of the CMM, and the introduction of the Personal Software Process (PSP)SM and Team Software Process (TSP){SM}. In addition to describing the original motivation for this work, the author also reviews many of the problems he and his associates encountered and why they solved them the way they did. He also comments on the outstanding issues and likely directions for future work. Finally, this work has built on the experiences and contributions of many people. Mr. Humphrey only describes work that he was personally involved in and he names many of the key contributors. However, so many people have been involved in this work that a full list of the important participants would be impractical. 相似文献
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基于复小波噪声方差显著修正的SAR图像去噪 总被引:4,自引:1,他引:3
提出了一种基于复小波域统计建模与噪声方差估计显著性修正相结合的合成孔径雷达(Synthetic Aperture Radar,SAR)图像斑点噪声滤波方法。该方法首先通过对数变换将乘性噪声模型转化为加性噪声模型,然后对变换后的图像进行双树复小波变换(Dualtree Complex Wavelet Transform,DCWT),并对复数小波系数的统计分布进行建模。在此先验分布的基础上,通过运用贝叶斯估计方法从含噪系数中恢复原始系数,达到滤除噪声的目的。实验结果表明该方法在去除噪声的同时保留了图像的细节信息,取得了很好的降噪效果。 相似文献