计算机硬件故障分析与维护探析

伴随着科学技术的快速发展,计算机硬件的技术含量要求越来越高,其维护工作也越来越重要。本文分析了计算机出现故障的原因,介绍了如何正确判断计算机硬件故障,以及计算机硬件维护的基本方法。     

关于计算机网络硬件的故障维护策略分析

随着科技的快速发展,计算机的应用已经深入到社会的各个角落,无论是企业、学校还是一些小型单位,计算机网络已经成为人们生活和工作中不可缺少的一部分,发挥着越来越重要的作用。但是,计算机给人们生活和工作带来极大便利的同时,也出现了诸多问题,如计算机硬件故障给使用者带来的不便,甚至数据的丢失。该文针对计算机网络硬件中常见的故障进行了简单分析,并对此提出相应的维护措施。     

刍议计算机硬件故障的识别与处理

当今社会是一个信息的社会,计算机被人们广泛使用,计算机的硬件出现故障的几率和原因也在增加,这个给我们的工作和生活带来了一定的损失。怎样快速识别出计算机的硬件故障以及怎样正确的处理这些影响变得意义重大起来。本文先是对计算机硬件故障进行了几类分类,然后讲解了硬件故障识别处理的一般方法和常见硬件的故障识别处理方法。     

浅谈计算机常见故障及其排除方法

随着计算机技术不断发展成熟及广泛应用,计算机故障也随之越来越多的发生,给用户造成越来越多的不便和损失,计算机故障诊断及排除已成为计算机管理工作的重要组成部分,所以本文就探讨一些常见的计算机故障产生的原因以及故障现象,并对一些常见故障排除做了几点分析和总结。     

计算机注册表经典故障分析与解决

计算机注册表历来在系统运行中起着极其重要的作用,针对他们所产生的故障也一直困扰着广大的计算机使用者。本文针对计算机注册表引起的经典故障,结合自己实际工作经验,对故障进行深入分析和解决。为快速解决此类故障提供技术支持。     

计算机CPU常见故障与排除

CPU是计算机运行的核心部件,一旦出现故障,将会导致计算机无法正常运行,影响用户的正常使用,更严重的话,将会导致计算机内数据资料被损毁,给用户带来极大的损失,根据计算机的非正常现象,找出CPU出现故障的原因,并及时排除故障,恢复计算机的正常功能,可以延长计算机的使用寿命,方便用户继续使用。     

计算机教学应加强学生软硬件维护能力的培养

作为现代信息社会必备工具之一的计算机,并非完美无缺,出现各种故障问题是无可避免的。如果使用者具备一定的软硬件维护能力,那会给工作带来诸多方便。该文试图从加强学生软硬件维护能力的角度,探讨职校的计算机教学中可以增加哪些计算机软硬件维护的内容。     

计算机软硬件故障检测与维修

计算机因自然或人为原因,极易出现各种软硬件故障,这给使用者带来了很多麻烦,一旦出现故障则影响计算机的正常运行,造成了使用者的不便,在计算机的故障中主要分为两类：软件系统错误、硬件物理损坏,即软件故障与硬件故障两类。熟悉和掌握计算机软硬件故障的检测、维修方法对计算机的使用者来说是非常重要的。本文对计算机的软硬件故障检测与维修进行简单的分析。     

计算机常见故障检测与维护

笔者针对计算机出现故障的外在表现,从真假故障的判断出发,采用文献分析法、对比法,首先,从电源线、插座、开关和各外设连接线及数据线的检查,系统新特性和设置方面的问题,真假故障3个方面入手,分析了真假故障的判断;其次,从电源故障检测与维修、主板、内存的故障及维修、连接线方面的故障检测及维修、硬件的散热问题引起故障检测及维修4个方面入手,研究了硬件故障及检测,接着,介绍了软件故障及检测;然后,从观察检查法、拔插交换法、替换法、升降温法4个方面入手,探讨了常见硬件故障检测及维修方法;最后,总结了计算机常见故障检测与维护方法的应用为延长计算机的使用寿命带来的积极影响。希望通过本研究,为计算机使用者提供有效的参考。     

计算机故障检测与定位

计算机的普及在人们的日常学习和生活中发挥出越来越重要的作用,因此,学会对计算机进行组装与维护,能够对计算机出现的故障进行检测与排除,就显得尤为重要.     

Comparison of posture and muscle control pattern between male and female computer users with musculoskeletal symptoms

The primary purpose of this study was to compare the posture and muscle control patterns between male and female computer users with musculoskeletal symptoms. Forty computer users were recruited. Each subject performed a preferred speed typing, a fast speed typing, and a repetitive mouse task. The independent variables were gender, typing speed, and time. There were significant differences between genders for head and neck flexion angles when they were performing the preferred speed typing task. Significant differences between genders were also found for upper extremity angles when they were performing the repetitive mouse task. Male computer users had a smaller root mean square of the right extensor digitorium than females. In general, postural differences were significant between genders, even when the subjects' table and chair were adjusted to meet their anthropometry. Our results suggest that modifications of the computer working environment may be different between genders.     

When the chips are down: Social and technical aspects of computer failure and repair

This paper explores computer failure as a social event by examining recorded interactions between computer users and help-desk consultants (technicians). It was found, first, that the nature of a failure was negotiated between participants rather than being simply technically evident. Failure was defined from users' perspectives, in relation to what they were trying to achieve, rather than according to technical parameters. Secondly, negotiations of failure had social consequences for both users and help-desk consultants. Both avoided being seen as incompetent and actively defended their social standing. Thirdly, such social issues sometimes took precedence over technical and practical ones. The implications for HCI theorists and practitioners are twofold: firstly, failure should be accepted as a regular part of computer use in which human–computer interaction continues even though the interface may be non-functional. Secondly, the management of failure could be better addressed if technicians were trained in social as well as technical intervention skills.     

病毒入侵计算机的途径与防治

随着计算机技术和网络技术的发展,计算机病毒技术也得到了飞速发展。计算机病毒更新速度快,层出不穷,给计算机个人用户和政府、企业等都带来了巨大的危害。作为计算机的使用者,应了解计算机病毒的入侵途径和防治方法,以维护正常、安全的计算机使用和通信环境。全文就计算机病毒的入侵途径和如何防治做了详细论述。     

计算机网络故障的解决措施

随着社会的发展和科技的进步,计算机网络已经融入人们的生活、工作和工业生产中,不可或缺。毫无疑问,计算机网络给社会带来了便利、快捷,但是不可避免的,计算机网络故障也成为了人们经常要面对的难题。针对这个难题,本文主要分析了计算机网络出现故障的现象和原因,并提出了几点解决的措施。     

BIOTC: An open-source CFD code for simulating biomass fast pyrolysis

The BIOTC code is a computer program that combines a multi-fluid model for multiphase hydrodynamics and global chemical kinetics for chemical reactions to simulate fast pyrolysis of biomass at reactor scale. The object-oriented characteristic of BIOTC makes it easy for researchers to insert their own sub-models, while the user-friendly interface provides users a friendly environment as in commercial software. A laboratory-scale bubbling fluidized bed reactor for biomass fast pyrolysis was simulated using BIOTC to demonstrate its capability.     

计算机联网软件的制式安全评价分析

随着信息时代的到来,信息量的急剧增加,我们的生活越来越离不开计算机网络,人们对计算机网络的依赖度越来越高,很多工作的进行都离不开计算机网络,很多的信息和数据都存储在计算机中,计算机使我们的工作量和工作难度大大降低,但计算机网络是一把双刃剑,带给我们便利的同时,也给我们带来了很多的风险,这些风险主要包括计算机病毒带来的风险,计算机设备安装带来的风险,网络数据库带来的风险和实际操作失误带来的风险。这些风险一旦发生,将会造成无法预测的后果,给计算机用户带来损失。因此,对计算机联网软件的制式安全评价分析就显得尤为重要。     

Computer anxiety and anger: the impact of computer use, computer experience, and self-efficacy beliefs

Past research has demonstrated that the level of computer experience users have is the most valuable predictor in whether or not they will suffer computer anxiety symptoms, but this was not the case in the present study. No research was found which examined the correlates of computer anger symptoms. In the current study, the relationship between the computer use (frequency and duration), computer experience, and self-efficacy beliefs of users were analyzed as predictors for computer anxiety and anger symptoms. Questionnaire data from a sample of 242 university students were analyzed. The results indicated that computer self-efficacy beliefs, not computer experience or use, had the largest significant relationship with both computer anxiety, and anger. It is suggested that self-efficacy beliefs be increased so that users may experience lower levels of anxiety and anger. These findings are contrary to the trend of training computer users in specific computer domains. As computer anxiety and anger are negative psychological “states”, an immediate method to deal with these negative emotions should be developed. One possibility that is explored is the application of computer-based therapy that can be used while a user is experiencing negative emotional symptoms.     

计算机网络安全隐患与应急响应技术

计算机网络的发展,使得互联网的边界越来越大。互联网的信息为人类生活带来了极大的便利,但是网络自身的开放性、自由性和互联性的特点,导致了网络所不可避免的安全隐患。严重损害的广大网络用户的利益。因此,改善网络的安全环境就显得格外重要。本文分析了计算机网络的安全隐患,并针对这些隐患,提出了相应的应急响应技术。     

学校公用机房数据安全策略的探讨与实践

针对学校公用机房的开放环境,使用频率、使用者水平等因素.基于管理者、使用者普遍关注的数据安全问题.从机房环境、数据还原、病毒预防、机房制度等方面进行了机房数据安全策略的探讨与实践,收到了很好的效果.     

Multi-position ergonomic computer workstation design to increase comfort of computer work

This paper presents a new design of computer workstation that is aimed at increasing the comfort of a user working for long periods at a computer. As we have become a society that spends a lot of time working on computers, the computer workstation needs to provide comfort to users. Discomfort and an improper position can negatively affect overall health and productivity. A new type of ergonomic computer workstation, which allows users to sit in multiple working positions, is proposed in order to provide better comfort to people who spend a long time sitting at their workstations. We have designed and developed a new multi-position ergonomic computer workstation which has 19 degrees of freedom and which can accommodate from 5th to 95th percentile human size. Four types of working position (upright, lean-back, zero-gravity and lean-forward) are preset by choosing different angular positions of the workstation parts. Positions of the workstation parts can be changed by controlling the actuators. These four positions were used to evaluate the comfort of the workstation. Subjective and objective evaluations, including comparison of the prototype and standard computer setup, were carried out using human subjects and ergonomic principles. Results showed that the new workstation is much more comfortable, supporting the body in a balanced way. Users have the freedom to stretch and relax in different working positions before they feel any noticeable discomfort; as a result, it lets users work for a longer period without strain, thus resulting in higher productivity.