now that we know the concept of IP addresses let's understand how we can access a certain website on the internet when we type the name of a website or a domain name in a browser a request for the IP address of the domain is sent to the DNS server this DNS server is like a huge phone book as it stores the IP addresses of all domain names on the internet as soon as the DNS server receives the domain name request it sends the corresponding IP address to the browser upon receiving the IP address the browser
forwards the request to the data centers or to be more specific the particular server which stores a requested IP address as soon as the server receives the users a request to access the IP address it sends the data in a digital format with the help of optical fiber cables this digital format is nothing but light pulses which reach devices like the Wi-Fi routers and cell towers