If you're traveling and want to connect to the Internet in your hotel, of course, you will need suitable equipment - laptop, netbook, tablet or a mobile phone with Wi-Fi. It is useful to have a suitable cable as well - it is not always and everywhere possible to use wireless connectivity. There are usually no problems with the Wi-Fi standards (also known as IEEE 802.11) - a/b/g/n. You will often need a password, so do not forget to read the materials of the hotel or take the password (to your wireless network or to access via cable) at the reception.