Digital circuit simulator via Internet

In this article, the authors present an application aimed at students who attend the subject of Digital Systems and want to make a continuous and progressive study of it. That´s why a logical simulator via Internet is being developed within the Internet portal of the subject of Digital Systems. It allows students to implement and to verify the practical part of the subject before the laboratory session. This simulator consists of an oscilloscope, a function generator, a power supply, in addition to several integrated circuits, which can be either combinational or sequential, or both.