A Dynamic Computer Science Laboratory

为计算机科学入门课程开发了一个新的正式实验环境。这个环境的基础设施和这个项目的工作重点是一个独特的软件系统，DYNALAB，它支持计算机科学中的广泛实验。DYNALAB由一个专业构建的PASCAL程序库、一个程序动画师和一个使初学者能够访问DYNALAB的用户界面组成。学生能够从图书馆检索程序，并通过程序动画师执行它们。在用户控制下显示相关的程序执行动态，包括当前执行行、变量和参数值、递归堆栈机制、语句计数、存储单元计数等。DYNALAB是开始将正规实验室纳入入门课程的计算机科学系的全国样板。基于DYNALAB和DYNALAB本身的一系列实验手册都是该项目的产品。

A new formal laboratory environment for the introductory computer science curriculum is developed. The infrastructure for this environment and the focal point of the effort on this project is a unique software system, DYNALAB, that supports extensive experimentation in computer science. DYNALAB consists of a comprehensive library of expertly constructed Pascal programs, a program animator, and a user interface that makes DYNALAB accessible to the novice. Students are able to retrieve programs from the library and execute them through the program animator. Pertinent program execution dynamics are displayed under user control, including current line of execution, variable and parameter values, recursive stack mechanisms, statement counts, memory cell counts, and others. DYNALAB serves as a national model for computer science departments that are beginning to incorporate formal laboratories into the introductory curriculum. A series of laboratory manuals replete with experiments based on DYNALAB and DYNALAB itself are the products of this project.