最近,杂志做了下半年的读者调查。此次调查与以往历次不同的是,我们在邮发的《微电脑世界》中按5％的比例随机抽样,然后在其中附上装有调查问卷的返回信封。这种调查方式的改进不仅使我们更加科学、准确地了解读者的真正需求,更是《微电脑世界》今后“以读者为中心”、依据读者需求科学地办杂志的开始。 控制工程理论的一个基本思想就是:要使系统能够按照一定的目标稳定地运行,它必须是一个闭环的控制系统。所谓的“闭环”就是要把系统的输出信息有效采集后,随时反馈回来,与系统的目标设定值比较,把出现的偏差通过执行机构来不断地调整,以达到系统稳定 Recently, the magazine conducted a readership survey in the second half of the year. The survey differs from the previous one in that we randomly sampled 5% of Microcomputer World in the mail and then attached the returned envelope with the questionnaire. The improvement of this method of investigation not only enables us to understand the real needs of readers more scientifically and accurately, but also “readers-centered” in the future of “Microcomputer World” and the beginning of magazine running scientifically according to the readers’ needs. A basic idea of ​​control engineering theory is that it must be a closed-loop control system to make the system run stably with a certain goal. The so-called “closed-loop” means that the output information of the system should be effectively collected and fed back at any time, compared with the target set value of the system, and the deviation is continuously adjusted by the implementing agency to achieve stable system