no its not possible
You can log into your Gmail from any computer. You must log out from any gmail account opened. Then you have to put your details in it for the same.
Yes, You are allowed to have more than 1 Gmail Account.
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.
yes, you can log in on multiple computers to the same account. You can even log out remotely other user from settings panel.
No two people can have the same gmail address. If there are 2 accounts, there will be 2 different email ID's. The Facebook account will be different in that case too.
You can log into your Gmail account by first visiting the official Gmail website. Your user name and password are then entered into the box which allows access to the site.
There is only one type of Gmail account. There is no difference between the accounts. Each accounts contains same features as the other.
No, computers are pretty much the same. Canada typically buys the same brand of computers as in the United States.
Yes, it is actually possible. You can be on one account on two different computers at the same time, and you can also make contributions on both computers at the same time if you wish.
HTML is different for computers and mobiles. For Mobiles the HTML used is different in various aspects.
Yes.
You can send mail from gmail to other email id the same way as you do it for gmail IDs.