PC机键盘剖析和应用

本文介绍标准微机键盘与PC机的接口规范，分析键盘的串口通讯协议和接口的工作时序，提出一种全新的利用键盘接口实现单片机系统和PC机通信以及单片机和PC机键盘通信的方案，并给出设计实例，通过实例为外部单片机系统与PC机通信以及单片机和PC机键盘通信提供了一条有效的途径。     

80C196单片机与PC机的通信及绘图

介绍子微机测控系统中80C196单片机与PC机通信的方法，利用80C196单片机内的串行口及Visual Basic5.0实现单片机与PC机之间的串行通信，并用VB5．0在PC机CRT上绘制曲线。     

运用VB实现微机与80C31单片机的串行通信

运用VB的串行通信控件mscomm,实现PC机与多台80C31单片机系统间的通信。在PC机与单片机的连接中采用了RS－232与RS－485转换器，实现较可靠的长距离通信。     

基于Proteus虚拟环境单片机与PC串口通信

Proteus虚拟环境提供的COMPIM组件,可用来设置单片机串口通信协议,使虚拟环境与实际PC通信成为可能。对于没有物理串口的PC机,可借助VSPD虚拟串口软件构建PC虚拟串口,仅用一台PC机就可实现单片机系统与PC串口通信。根据单片机串口通信的特点,提出了单片机与PC串口通信的结构模型,即应用层、数据链路层和物理层三层结构,探讨了串口通信结构模型与通信方式之间的关系。在Proteus环境中以虚拟串口为例,设计了硬件电路和通信程序、给出了串口通信程序流程图,在一台PC机上实现了单片机与PC串口通信。     

怎样进行PC机与单片机的串行通信系统的设计

本文总结了异步串行接口在PC机与单片机串行通信中的应用，并结合实例比较务实地从硬件和软件两个方面对PC机与单片机串行通信系统的设计进行了比较完整的论述。     

键盘接口在单片机系统与PC机通信中的应用

提出一种全新的利用键盘接口实现单片机系统和PC机通信的方案,介绍了键盘与PC机通信的原理,并成功地应用于实际系统。该方案为外部单片机系统与PC机通信提供了一条有效的途径。     

AT89C52单片机与VB串行通信的实现

介绍了AT89C52单片机与PC机串行通信的实现方法，串行存储器24C256的读写操作流程。并给出了具体通信接口电路、单片机串行通信程序流程以及利用VB6．0的通信控件MSComm实现PC机串行通信的程序。系统经过实际应用，效果令人满意。     

PC机与单片机通信在数据采集系统中的应用

介绍了PC机通过RS485接口芯片MAX485与多台8051单片机串行通信的方法，详细说明PC机与8051单片机串行通信口在实验数据采集系统中的应用及多台实验设备数据采集系统的硬件电路和软件编程。     

Windows CE下PC104模块与MCS-51单片机串行通信

基于WindowsCE的嵌入式PC104模块和MCS－51单片机构成主从分布式数据采集与控制系统。该系统具有响应速度快，抗振动，耐灰尘，适应恶劣环境等优点。PC104模块与单片机之间的串和通信是监控系统实现的关键。详细说明WindowsCE下PC104模块与MCS－51单片机RS－232C通信的硬件连接和软件设计。     

用组态王实现PC机与多台单片机的远程通信

介绍了用组态王6.51实现PC机与多单片机远程串行通信的一种方法，给出了PC机与80C51单片机的硬件连接电路和通信协议，较方便的实现了PC机与多台单片机的远程串行通信。     

Message passing communication versus procedure call communication

Communication by message passing or by procedure calls in one of the key issues when discussing languages for multiprogramming. The two languages Platon and Concurrent Pascal represent the different approaches which are contrasted by presenting a few programs written in both languages.     

高效的水下无线通信方式：逆时通信*

结合经典实验详细介绍了逆时通信是如何有效减弱码间串扰及有效提高信息传输速率的。最后简要说明了逆时通信的研究现状和其他应用。     

Myrinet communication

In last year's IEEE Micro special issue on the Hot Interconnects IV Symposium, we discussed our experiences with client-server computing on the Paragon-based Shrimp multicomputer. Since then we implemented the same virtual memory-mapped communication (VMMC) mechanism on the Myrinet-based Shrimp multicomputer (a set of Pentium PCs connected by a Myrinet network). In both cases we achieved protected, user-level, end-to-end performance close to the hardware limits. However, VMMC imposes a copy for high-level connection-oriented communication libraries. Therefore, we extended the model, and designed and built a new implementation. This update reports our latest work with VMMC on the Myrinet-based Shrimp multicomputer, which we call VMMC-2     

Context-aware communication

Describes the Mercury system, whereby a user of an electronic message service receives messages on a device and in a format appropriate to his context (travelling, in a meeting, etc.); and ConChat, whereby besides transmitting his message he automatically transmits contextual information such as his location, the number and identities of other people in the room, the room's ambient temperature, lighting, and sound, other applications and devices running in the room, his mood, his personal status (on the 'phone, out to lunch, etc), and any activity in the room.     

Serial communication

Serial datalinks are most commonly used by computers to communicate with both local and remote terminals. In this article, the simple serial datalinks that are most often used are described.     

Processor-processor communication

Loosely coupled distributed microcomputer systems require communication links between different computer configurations. Byte oriented serial links provide a simple way of overcoming the problems of incompability between the computer configurations. The communications protocol, hardware and software for handling such links are discussed.     

适于多种通信设备的多媒体通信终端软件

针对应急通信系统的需求,本文介绍了一种适用于多种通信设备的多媒体通信终端的软件实现方法.软件采用了面向对象的设计方法,根据通信设备和各种业务的特点,合理的界定了通信模块和各种业务模块之间的职能.在对通信模块接口进行合理抽象的基础上,软件实现了适用于以太网、网络电台和短波电台的通信模块.在通过不同的下层通信设备进行通信时,终端软件只需要选择不同的通信模块就能实现包括语音、视频、短信息、静态图像、电子白板和文件传输在内的多媒体通信.     

适于多种通信设备的多媒体通信终端软件

针对应急通信系统的需求,本文介绍了一种适用于多种通信设备的多媒体通信终端的软件实现方法。软件采用了面向对象的设计方法,根据通信设备和各种业务的特点,合理的界定了通信模块和各种业务模块之间的职能。在对通信模块接口进行合理抽象的基础上,软件实现了适用于以太网、网络电台和短波电台的通信模块。在通过不同的下层通信设备进行通信时,终端软件只需要选择不同的通信模块就能实现包括语音、视频、短信息、静态图像、电子白板和文件传输在内的多媒体通信。     

Adapting and personalizing the communication in a synchronous communication tool

Abstract   In this paper, we present a synchronous text-based communication tool, referred to as Adaptive Communication Tool (ACT), which provides capabilities for adaptation and personalization. ACT supports both the free and the structured form of dialogue. The structured dialogue is implemented by two types of Scaffolding Sentence Templates (SST); i.e. sentence openers or communicative acts. The capability of adaptation is considered in the sense of making suggestions for the supported form of dialogue and SST type and providing the most meaningful and complete set of SST with respect to the learning outcomes addressed by the collaborative learning activity and the model of collaboration followed by the group members. Also, ACT enables learners to have control on the adaptation by selecting the form of dialogue and the SST type they prefer to use and enriching the provided SST set with their own ones in order to cover their communication needs. The results from the formative evaluation of the tool showed that (i) the proposed dialogue form, SST type and the provided set of SST cover students' communication needs, (ii) the capability of personalizing the communication by selecting the desired communication means as well as by enriching the provided SST set satisfied students, and (iii) students used adequately both types of SST resulting into on-task and coherent dialogues.