How can I get Internet on PC?

Could you please elaborate on the various methods available for connecting a personal computer to the internet? I'm particularly interested in understanding the steps involved in establishing a wired connection using an Ethernet cable, as well as the setup process for a wireless connection via Wi-Fi. Could you also explain the advantages and disadvantages of each type of connection? Additionally, would you mind sharing any tips or best practices for ensuring a stable and secure internet connection on a PC? Thank you for your assistance in this matter.