Not the shell, and recent research(laptop teardown) suggests. Yesterday I tore out the motherboard and peripherials from an HP g62 laptop. This one has a history. Our church used to use it for projecting music lyrics until several months past. We used it there until the mechanical hard drive failed. So I brought it home and booted Puppy Linux 4.3.1 out of a 32GB USB flash drive :P!
Yesterday I was watching PC build videos on youtube and figuring out how they work. So I asked myself: "What all is actually needed in a laptop?". Turns out, just the motherboard, processor, cooling system, and memory/peripherals. I tried to post a video of it booting, but I get a little problem, "No file data could be found in your post".