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Remember when you needed a phone line and a dial-up modem to get online? Heck, I was using modems to connect to services like Compuserve and Prodigy before anyone even knew what the Internet was. One of the most annoying things about dial-up modems was that stupid squealing sound they made when you were trying to connect.
One of the worst things about using a wireless modem on the go to connect your computer to the Internet is that it’s a pain in the butt to know how much data you’ve used. A data overage can cost you hundreds of dollars or more, so most people will keep a close eye on exactly how much data they are using.