with a router
Computers themselves do not generally have an email address. To be able to access the same email from different computers simply create an online email account such as Gmail (https://www.google.com/accounts/) . You can access this account anywhere you have internet on any computer.
no they not have the same speed
Yes, it can. Use internet port as a communication port with the network you want to connect to.
Wi-Fi is wireless fidelity, and is basically a wireless way to access the internet. It is the same thing in terms of computers and mobile devices, since they both can use Wi-Fi.
It can, I recommend changing the computer's IP Address. By the way good game.
Not usually. Typically "network" is referred to as being your home network. This includes any computers you have wired to a router or any wireless computers accessing your wireless access point (can be the same as your router) if you have one. The ISP is the company that provides you access to the internet. This is a typical setup where "network" is anything that is connected to the left of the modem. Computer -> DSL/Cable Modem -> ISP -> Internet
No because the IP should be a unequal number to other computers. If 2 machines are the same IP, you will not be able to access the internet.
The same way all computers are
"No. Apple mac computers use Safari, and Firefox. Firefox is the same for Windows and Mac. I think that Internet Explorer was created for computers that use Windows only."
Yes.
The term network means all connected together, most companies and businesses will have their computer systems networked, all the computers will share the same internet, so if the internet service provider goes down, all the computers will not be able to access the internet. In most networking is done by using LAN, but wireless networking is also possible aswell.
In All computers connected to the Internet at the same time (not your personal computer, just servers)