How is it that all of our computers are able to communicate without physical cables between them?
Information is shared in the form of packets through radio waves and hardwire connections as intermediaries between one computer and the other which can be anywhere in the world.
How does the internet track your digital footprint and publish ads based on your interests?
The internet tracks your digital footprint and uses it to personalize ads in many different ways. Some of these include: cookies and tracking pixels, IP addresses, search history, your social media activity, online shopping and device and app usage. Advertisers use this collected data to create personalized ads that are more likely to catch your attention and resonate with your interests. For example, if you frequently search for travel deals, you might see ads for flights and hotels.
Q3: How do internet domains work, where do you buy and sell them at
Internet domains serve as particular addresses for web sites, translating human-readable names into IP addresses via the Domain Name System (DNS). Each area includes a 2d-degree domain (chosen through the owner) and a top-degree area (like .Com or .Org). To purchase or promote domains, you could use domain registrars like GoDaddy and Namecheap, committed marketplaces along with Sedo, Flippa, and Afternic, auction websites like GoDaddy Auctions and eBay, or forums like DNForum. The buying process entails searching for available domains, making gives or bids, completing the acquisition, and moving possession, at the same time as promoting requires listing the area, setting a charge, negotiating gives, and facilitating the switch. It's important to use respectable systems with steady payment alternatives and to analyze area values to make sure honest transactions.