What is servers

Answer 1

You posted this question, that is stored in a electronic device called server, which will have softwares to store this question, all the answers and likes. Other function of the server is that, it will also send this question to all other sololearns to answer.
Types of servers:
Web server,
Mail server,
FTP server,
News server,
IRC server.

Answer 2

A server is component that serves a purpose. Simple as that.

For examples, database server, serves with database responses. Application server, serves with application response.

It can be virtual or physical, there is no need to really have a "huge computer" to be a server, any computer can be.

But still, for more robust connections more resources are required

Answer 3

Thank you bro