Pieces of technology and technological systems

My LI is to define pieces of technology & to define a technological system.
For this I had to pair up with someone in my group that was chosen, we then had to sort a document filled with pictures of technological systems and technological pieces. Once we’d sorted the pictures we then had to write a definition for the systems and pieces, we also had to find an example for the two of them and explain why they were that type of technology.
We did this by reading the explanations of a piece of technology and a technological system, we then used our knowledge of the differences between the two types to sort the pictures out.