Moving Toward a Standard Military Computer Family

The three papers that follow this introduction describe a number of technical issues that have arisen out of studies sponsored by the three services. The end goal of the studies is to determine how best, if at all, the military should standardize its computer systems.     

Special Feature a New Approach to High-Speed Computer Graphics: The Line

The design of a better line drawing algorithm led to some general strategies for boosting software efficiency.     

A Bus System for the Military Computer Family

A number of perplexing technical issues must be resolved as bus designs for the MCF systems are implemented. Their resolution could have an industry-wide effect.     

A New Approach to the Functional Design of a Digital Computer

The present methods of determining the functional design of computers are critically reviewed and a new approach proposed. This is illustrated by explaining, in abstracted form, part of the control organization of a new and different machine based, in part, on the ALGOL 60 language. The concepts of expression and procedure lead directly to use of a Polish string program. A new arrangement of control registers results, which provides for automatic allocation of temporary storage within expressions and procedures, and a generalized subroutine linkage. The simplicity and power of these notions suggests that there is much room for improvement in present machines and that more attention should be given to control functions in new designs.(1961).     

Selecting a Military Computer Architecture

Selecting or even designing a computer architecture is at best as much a black art as a science. The problem is particularly difficult when one tries to choose an architecture meant to serve a very broad range of users whose present and future requirements are poorly understood. This article describes the activities of a joint Army/Navy Selection Committee, which was charged with the task of selecting a single computer architecture to be used as the basis for a new military computer family. The range of applications for military computers is broad and ill defined; how the committee tried to cope with this problem should be of interest to others who are interested in measuring, designing, or selecting computer architectures.     

拓展家校协作新途径——基于JXTA的家校通系统

高效的家校协作能够调动整个教育体系中的每一个角色,为学生营造一个良好的教育环境。文中设计并实现了基于JXTA的P2P模式家校通系统,改变一般“家校通”的家、校“两点”式交流为家长、学生、老师和学校的“多点”式交流,开拓家校协作的新途径,拓展“家校通”的内涵,既实现了家校高效合作,又挖掘出家长中间的教育资源,更好地促进学生学习的主动性,以及获取知识的多渠道。     

分组直接控制--微程序控制的新技术

提出了一种新的微程序控制技术———分组直接控制法。用分组直接控制法可使微指令字长和控制存储器的容量减少50%以上,可降低微处理器芯片的成本、提高微处理器的性能价格比。分组直接控制法把微指令分成若干组,通过位的复用使微指令字长缩短。微指令的控制字段分成组选择字段和微命令字段,由组选择位决定微指令发出的是什么微命令。微指令不需译码。     

UltraPaint: A New Approach to a Painting System

The ideas underlying a Painting System being developed at the University of Bath are introduced. This differs from a conventional system in that ultra high definition pictures of upto 1 gigabyte may be created. We discuss approaches to implementing a number of standard paint program utilities in a form suited to our high definition method. Finally, we describe an algorithm for the rapid extrusion of brush strokes on a raster device.     

嵌入式系统设计的新思路—SOC

90年代以来,SOC（Sytem On Chip)已成为微电子芯片技术发展的热点,SOC技术的出现表明了微电子技术由传统的IC（电路集成）向IS（系统集成）发展,它的出现拓展了嵌入式系统的设计思路,提高了设计的功能与效率。本文以便携式MP3播放器的设计为例,从一个方面展示了SOC技术的特点和优势。     

Vega: A Computer Systems Approach to Grid Computing

In this paper, we contrast four approaches for Grid computing, and discuss a computer systems approach in detail. This approach views a Grid as a distributed computer system, and its main concerns are systems abstractions and constructs, such as the Grid equivalents of computer architecture, address space, process, device, file system, user/developers interface. Following this methodology, we identified several essential issues, developed a Vega Grid systems architecture, and proposed several systems techniques such as Grid routers, Grid address spaces, Grid process (grip), Grid community (agora), and a Grid Service Markup Language (GSML) software suite. We evaluated the computer systems approach and the associated techniques by discussing an OSGA-compliant Grid system software implementation and a travel agency example.     

浅谈计算机与军事信息战

了军事信息战的概念及其基本特征,说明了计算机是未来军事信息战中的核心与支柱,以及计算机病毒的对抗,最后指出了军事信息的成慑效果。     

The Computer Family Architecture Project: Service Perspectives and Overview

Standardization of digital computers used in tactical military systems has many potential benefits-simplification of training and logistics, economy in production, and reduced software development costs, to name a few. To realize these benefits, the Army-Navy Computer Family Architecture (CFA) Project seeks to define a family of military computers at varied levels of performance, software-compatible with each other and with an existing, successful computer. Such a family would overcome the difficulties encountered with past military standard computers, which have not generally been compatible in this way. Suppliers of the new family would be free to introduce new technology and new concepts of implementation, consistent with the specifications of the family. Thus, standardization on an existing instruction set architecture offers advantages beyond those conferred by standardization on a number of incompatible black boxes.     

基于仿真的军用电子设备故障知识获取新方法

故障知识获取瓶颈问题严重限制了我国军用电子设备智能诊断系统的发展。该文首先分析了军用电子设备的特点,然后总结了通过故障仿真获取故障知识的一般过程,在此基础上提出了计算机自动穷举设备所有可能故障,并进行仿真获取故障知识的新方法。提出4个关键策略解决仿真工作量及自动建立故障集的问题。提出了电路故障知识获取平台的建立方案作为该方法的具体实现。该文所提出的知识获取自动化在一定程度上解决了故障数据收集困难的根本问题,同时使获得的知识更完整。最后,实验结果证实其可行性。     

New Approach to Virtualization Is a Lightweight

Virtualization is a hot topic in the technology world. The technology enables a single computer to run multiple operating systems simultaneously. It lets companies use a single server for multiple tasks that would normally have to run on multiple servers, each running a different OS. Now, vendors are releasing products based on two lightweight virtualization approaches that also let a single operating system run several instances of the same OS or different OSs. However, today's new virtualization approaches do not try to emulate an entire hardware environment, as traditional virtualization does. They thus require fewer CPU and memory resources, which is why the technology is called "lightweight" virtualization. However, lightweight virtualization still faces several barriers to widespread adoption     

《计算机文化基础》课程教学中数制转换新方法研究

信息的数字化表示是《计算机文化基础》课程教学中的一个重点,而进位计数制的概念及数制之间的转换是其教学难点。在将十进制数转换成非十进制数的传统方法的基础上,提出一种简单、快速的改进方法。教学实践表明,改进的方法能使学生容易掌握,攻破教学难点,提高教学效果。     

An Ontological Approach to Computer System Security

ABSTRACT

Computer system security relies on different aspects of a computer system such as security policies, security mechanisms, threat analysis, and countermeasures. This paper provides an ontological approach to capturing and utilizing the fundamental attributes of those key components to determine the effects of vulnerabilities on a system's security. Our ontology for vulnerability management (OVM) has been populated with all vulnerabilities in NVD (see http://nvd.nist.gov/scap.cfm) with additional inference rules and knowledge discovery mechanisms so that it may provide a promising pathway to make security automation program (NIST Version 1.0, 2007 NIST. 2007. Information Security Automation Program, Automating Vulnerability Management, Security Measurement, and Compliance, Version 1.0 Beta revised May 22 [Google Scholar]) more effective and reliable.     

工控机在化工厂调度数据采集系统中的应用

本文根据化工厂调度数据分布的情况,从现代监测要求出发,应用研华公司系列智能模块,设计了一个调度数据采集系统,该系统对加强生产管理和提高生产效益起了一定的作用。     

计算机教学的新模式——计算机全程教学

把计算机的教学紧紧联系市场前沿，通过教学改革，让学生能够接触到最新的计算机技术，大大提高动手能力，让老师掌握最好的教学方法，动态地与学生交流，取得最好的教学效果.     

一种面向协同设计业务处理的中间件结构及其实现

在协同设计系统网络分布计算模式的基础上，提出了以协同设计业务处理中间件为对象主体的网络分布计算环境平台，重点研究了面向协同设计业务处理的中间件结构及其核心功能模块，并以公共数据接口和数据通信线程控制协议为例，分析了协同设计业务处理中间件的程序实现及其实际应用．