A- PayPal is an account-based system that lets people securely send online payments to anyone with an
email address using their credit card or bank account.
Once you sign up for PayPal, you can send money to anyone with an email address using the money from your PayPal balance or another funding option of your
choice. Recipients are notified by email that they have received a
payment.
For more information, please visit there website: http://www.paypal.com.