Answer: because it is the largest network currently available and that all other local network needs resource of internet or internet service.
Answer:Why the Internet is Called the "Mother of All Networks"1. Connection of NetworksFirst off, the Internet connects tons of smaller networks all around the world. It’s like a giant web that links everything together, allowing us to communicate and share information no matter where we are.2. Historical RootsIt all started back in the late 1960s with ARPANET, which was basically the first version of what we now know as the Internet. Over time, it grew and evolved, especially with NSFNET in the 1980s, which helped connect universities and research institutions.3. Foundation for EverythingThe term "mother" really highlights how essential the Internet is to our daily lives. Just like a mother connects and supports her kids, the Internet connects people, businesses, and even devices. It’s where we find information, connect with friends, and even shop!4. Global ImpactFinally, calling it the "mother of all networks" shows how it has changed the world. It has made communication easier and faster than ever before, impacting education, entertainment, and so much more.