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# Introduction

The modern world would not be able to function without electronic systems. Using a variety of teaching material, including videos and interactive activities, this free course, Electronic applications, will show you how electronic systems can be found everywhere in communications, control and signal processing. It focusses on electronic filters, particularly digital filters.

Note that the interactive activities have been designed to work in the Firefox and Chrome browsers, so you will need to use one of these browsers if you want to access the interactive content.

This OpenLearn course is an adapted extract from the Open University course T312 Electronics: signal processing, control and communications

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OpenLearn - Electronic applications
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