This free course was written by Allan Jones, David Chapman, Helen Donelan, Laurence Dooley, and Adrian Poulton.
This free course includes adapted extracts from the course TM355 Communications technology. If you are interested in this subject and want to study formally with us, you may wish to explore other courses we offer in Technology.
Except for third party materials and otherwise stated (see Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence.), this content is made available under a
The material included with this course is entirely the property of the Open University.
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