Contrary to how it appears, computers can't actually communicate with each other using written language. Instead, computers talk to each other using numbers. All computers that connect to the internet have a unique numerical address stored in their software. For example, while most people type www.google.com into their browser when they want to use Google, they could just as easily type http://126.96.36.199/ and get the same result. This numerical configuration is called a computer's IP address. IP addresses allow computers to pass information back and forth to each other. And as far as No-IP is concerned, that's pretty much everything the average person needs to know to understand the services they offer. In a nutshell they provide services that mean that customers can use any device that can access the internet (say a library computer) to connect with any of their home devices that also allow for remote access (a DVR, webcam or remote thermostat just to name few). For corporations, No-IP has a variety of DNS services. The job of a DNS server is to take those computer numbers and translate them into human-speak. When a DNS takes a virtual coffee break or calls in sick, it can wreck havoc with a website and result in lost business. No-IP offers DNS services that are always alert, awake and on the job.