The dark side of information technology use

A large body of research has considered the positive aspects of information technology (IT) use. However, emerging research and practice commentary is beginning to focus on complex and often alarming ways in which use of IT affects organisational and social life. This Special Issue focuses on these ‘dark’ effects of IT use.     

测试系统多任务管理研究

针对测试系统多任务管理中存在的代码冗余和代码混乱等问题,运用面向对象的思想提出了"任务集合"和"任务配置集合"的概念,结合某具体的测试系统,具体阐述了"任务集合"和"任务配置集合"的概念,采用C#编程语言给出了"任务集合类"和"任务配置集合类"的具体实现,并讲解了其在测试系统中的实际应用;通过比较,"任务集合类"和"任务集合配置类"的应用减少了代码冗余,提高了编程效率;最后得出所做的研究优化了测试系统多任务管理的结论.     

基于Windows95的可视电话软件系统中多线程设计策略

介绍了 Windows95操作系统中占先式多任务的概念和管理机制 ,重点讨论了在可视电话软件系统中多线程优先级的设置对系统性能的影响及优化策略     

Windows NT/95是实时控制系统较理想的平台

该文将DOS与Windows NT/95作一简单比较,并通过NT/95下实时控制系统应用的几个实例,从实时控制系统所要求的几方面阐述了NT/95在该领域作为操作平台的可行性。     

基于uClinux的嵌入式数字存储示波器

基于嵌入式uClinux操作系统,使用MotorolaMC68VZ328CPU,设计并实现了一种数字存储示波器。利用两组FIFO构成双体交叉存储器将采集速度提高一倍。在uClinux平台上实现多任务程序运行,用中断方式实现触摸屏控制。系统最大采样频率为40MHz,8bit分辨率,工作电流350mA。具有240×320像素LCD显示并可通过触摸屏控制各种操作。系统具有采集、存储、显示和分析的功能。     

HIRFL的多任务多视窗束流诊断系统软件的设计

介绍了兰州重离子研究装置的多任务， 多视窗的束流诊断系统软件的设计思想和设计方法，并给出了软件的运行结果。该系统软件具有功能强，测量直观，可靠性高和界面友好等优点。     

Digital self-control interventions for distracting media multitasking - A systematic review

Digital distractions can interfere with goal attainment and lead to undesirable habits that are hard to get red rid of. Various digital self-control interventions promise support to alleviate the negative impact of digital distractions. These interventions use different approaches, such as the blocking of apps and websites, goal setting, or visualizations of device usage statistics. While many apps and browser extensions make use of these features, little is known about their effectiveness. This systematic review synthesizes the current research to provide insights into the effectiveness of the different kinds of interventions. From a search of the ‘ACM’, ‘Springer Link’, ‘Web of Science’, ’IEEE Xplore’ and ‘Pubmed’ databases, we identified 28 digital self-control interventions. We categorized these interventions according to their features and their outcomes. The interventions showed varying degrees of effectiveness, and especially interventions that relied purely on increasing the participants' awareness were barely effective. For those interventions that sanctioned the use of distractions, the current literature indicates that the sanctions have to be sufficiently difficult to overcome, as they will otherwise be quickly dismissed. The overall confidence in the results is low, with small sample sizes, short study duration, and unclear study contexts. From these insights, we highlight research gaps and close with suggestions for future research.     

When attention-grabbing tactics backfire during media multitasking: The detrimental effect of atypical advertising slogans on brand attitude

Emerging technologies have transformed traditional single-screen viewing into a new form of audience behavior called media multitasking (e.g. surfing the internet while watching TV). This shared attention in media-multitasking situations poses a challenge to media planers when attracting the audience’s attention. However, attention-grabbing tactics might backfire on companies as they make manipulative intent salient and, therefore, decrease levels of brand attitude. This study advances the extant research by challenging the suitability of silence as an attention-grabbing practice in advertising during media multitasking. More specifically, we test if atypical (i.e. silent) slogans in TV commercials impact on consumers’ evaluation of brand-related information when media multitasking. Utilizing a one-factor (two-level) between-subject laboratory experiment (N = 66), this study examined participants’ feelings of manipulation and brand attitude when exposed to typical versus atypical TV advertising slogans in a media-multitasking situation. The results demonstrate that a typical TV advertising slogan (i.e. audio in addition to vision) during media multitasking results in lower salience of manipulative intent compared to an atypical slogan (i.e. silent) and positively impacts on brand attitude.     

A case for information theory-based modelling of human multitasking performance

Technological advances have led to increased prevalence of human multitasking. Traditionally, multitasking performance is measured for each individual task, utilising multiple performance metrics. Recently, the human operator informatic model (HOIM) has been developed as a quantitative model of human–machine interaction capable of measuring multitasking performance with a single metric. In this study, we investigated the performance effects of both a different number of tasks and five different task combinations while maintaining a constant level of overall difficulty. Results indicate that, at a constant difficulty level, neither number of tasks nor task combination significantly affects multitasking performance, indicating the reliability of input baud rate as a measure of system complexity. No task interaction effects were found among the different tasks. This study demonstrates the application of information theory for modelling of human multitasking performance and makes a case for the use of the HOIM in future studies of human information processing.