I would like to build a notebook myself, but is that even possible? And where can you find all components?
I do not think they are not as modular as a PC.
No, because you can't buy most parts just like that. You can buy many things mostly only in used condition on Ebay classifieds and so, but most new parts are there so in specialty stores not to buy (just apart from the memory or the hard drive). In addition, the holes for the mainboard also have to fit the respective housing. Say, you can often install only identical parts or replace.
Alexi Bexi made a video about this:
It would go.
You can also build a tablet or smartphone.
The only question is: can you get it for everyday use?
The hardest I do not get the hardware (which you get in the form of spare parts), but the case.
You will not get this done and it is specially tailored to the particular device.
So if you want to call your own a log that you think has been forged in some workshop and that's at least 3x thicker than a purchased device: Go ahead.
Exactly why PCs are "unnecessarily" large: Thanks to the spaciousness and many standardizations, any average user without electronics knowledge can assemble his dream PC with a broken screwdriver from the gumball machine, without having to deal with airflow problems in edge-mounted housing scientifically. Simply plug it together as the generous slots designed for gross motor DACs allow it to turn on and off mechanically. True to the motto: What does not want together, must not together. If the plug does not fit into the jack, you're at the wrong jack.
A laptop is therefore much smaller with similar performance, because these many "DAU reserves" have been omitted, waived standards and the housing was tailor made.
But you can if you can program and Linux is good for you, I once built a functional laptop with a wooden frame, he has only the performance of a low-class smartphone to about 200 euro, but at least!
Basically I made it with the single-board computer "Raspberry pi" as well as a small keyboard and a screen, so it's possible!
Have fun tinkering
