This paper describes an activity developed in the Dipartimento di Elettronica of Politecnico di Torino in the field of computer based training in electronic instrumentation and measurements. Several modules have been developed to assist the students to acquire the fundamentals of the basic instrumentation; furthermore, a client-server system has been designed in order to allow the students to operate on a remote laboratory for experimental training. The courseware includes lessons, exercises, and a training on virtual instruments which emulate actual instruments. The students can also carry out several real laboratory experiments without actually being in the laboratory, by using a client-server structure based on the Internet. Since these innovations were only introduced last year, they are in the testing phase and so far only a few results have been obtained on the effectiveness of the learning process. Nevertheless, the students have shown a favorable acceptance and have satisfactorily used the new tools. Demos of both the theoretical and practical part of the courses are available through the Internet.