The PC is dead
Long live the PC!
"What is the difference between a notebook, and a mobile workstation? Does a mobile workstation come with it's own sherpa?"
A workstation has actual processing power. For a desktop that generally mean multiple Xeon processors, Quadro (or FirePro) GPU at minimum with possibly Tesla depending on the type of work, and a ton of RAM - they still seem to sell them with as little as 64GB, but you'll be laughed at if you actually try buying something with that little. Obviously mobile workstations don't tend to have such high specs, but you're still looking at Xeon, Quadro and lots more RAM than a regular laptop (64GB being more like the maximum rather than minimum in this case).
A netbook, on the other and, is a lightweight, underpowered laptop that can't do much other than brows the internet and type stuff in Word. Generally their processing power is enough to decode 1080p video and not a lot more - low power CPU with integrated graphics and probably no more than 8GB RAM, if that.
Or to put it simply, the difference between a netbook and workstation is about a factor of 10 in price. You can get the former for a few hundred, while the latter is a couple of grand minimum for half decent specs.