What is the point in all these erorr codes?

What is the point in your pc telling you all these error codes when the internet goes down or something, I mean you've got to be some sort of commputor expert to know what "error code 606" is. So what is the point in error codes?

What is a VPN?

VPN is (Virtual Private Network) were first used by companies to enable their employees to securely access internal systems such as email remotely (e.g. from home or while on business trips). Today they are increasingly being used for personal use by individuals to protect their privacy while online in public places (e.g. when using the wi-fi connection in a cafe) or in a country where the internet is censored / blocked (e.g. China, Saudi Arabia…).