1st half of long lab:
Create a detailed drawing of the back of our PCs, sketch in pencil on graph paper. Label each port / connector on the computer. The ports / connectors list will be on the projector.
Draw neatly on the graph paper messy sketches will need to be redrawn.
2nd half of long lab:
You will need to carefully disconnect your computer and open the case. Identify all of the components on the personal computer hardware wiki. Create a detailed sketch with pencil on graph paper of the location of the components.
After completing your internal sketch carefully reassemble your workstation and test it to make sure it works.