The cheapest PC available is the HP Stream 11. It's a Windows 10 laptop that costs just $200. For that price, you get a decent-sized 11.6-inch display, a Celeron N4000 processor, 4GB of RAM and 32GB of storage. It's not going to be the fastest or most powerful laptop around, but it should be able to handle basic tasks like web browsing and word processing without any problems.