In the main, workshops and courses are held to allow for education in a particular subject matter. They can be exploratory in scope or operate within highly defined areas, but they all have in common the idea of personal progress in some way. For example, workshops and course in music could be aimed at beginners to allow them to try their hands at several different instruments. More advanced courses might be for tuition into just one instrument to enable intermediate players to gain advanced skills. Both workshops and courses are conducted throughout the academic year, and they are run formally and informally. Some require attendees to pay in advance for their tuition, whereas some work on a voluntary payment basis. Others, still, are completely free. Workshops and courses cover every area of life, from religion to car mechanics.
To explain the concept of applied science and technology, it's important to know that applied science relates to the practical applications that scientific research can be put to. For example, when x-rays were first discovered as part of the electromagnetic spectrum through scientific research, there were no x-ray machines that could photograph inside the human body immediately in production. The discovery of them implied that such an application might be possible, however. It was the field of applied science which developed a new form of technology to come up with the x-ray machines you can find in every hospital around the world, these days. Another example of applied science leading to new technology is ballistics, a highly mathematical field of mechanics that is devoted to projectiles. Without applying the science of ballistics to things like rocket ships, the technology that got man to the moon, or even into orbit, would never have been possible.