Hardware.Info published their Entry-level PC buying guide for April 2018
A quote from the article:
Our guidelines for the Entry-level PC category are as follows. The entire computer system, excluding OS, should not exceed $500. Its primary, but not only, function is to provide a smooth and enjoyable online experience. This means that the cheapest processors won’t be enough, as modern web pages and internet applications do demand some processing power.Entry-level PC - April 2018
Additionally, the system has to be able to efficiently perform internet-related tasks. This includes basic photo editing (cropping and resizing to upload or send a photo) and extracting compressed files. At the same time the necessary background programmes need to be active, such as a virus scanner, a firewall, and anti-spyware software. The computer also needs to be able to efficiently run word processing software and administrative programmes.