In Windows 7 and Windows 8.1, when you create an ad-hoc network between two computers, you create a peer-to-peer network between them.Such examples are Ubuntu, Linux Mint, and Manjaro. Many Linux operating systems are distributed via BitTorrent downloads using P2P transfers.Others, like Steam or GOG, choose not to use P2P and prefer maintaining dedicated download servers around the world. Another large publisher, Wargaming, does the same with their World of Tanks, World of Warships, and World of Warplanes games. Blizzard Entertainment distributes Diablo III, StarCraft II, and World of Warcraft using P2P. For example, some online gaming platforms use P2P for downloading games between users. Sharing large files over the internet is often done using a P2P (peer-to-peer) network architecture.There is more information about this feature here: Optimize Windows 10 update delivery. Windows 10 updates are delivered both from Microsoft's servers and through P2P.Windows 10 uses peer-to-peer to optimize the delivery of updates Peer-to-peer networks are ideal for file sharing because they allow the computers connected to them to receive files and send files simultaneously. However, the most common use case for peer-to-peer networks is the sharing of files on the internet. As mentioned earlier, P2P is used to share all kinds of computing resources such as processing power, network bandwidth, or disk storage space. The primary goal of peer-to-peer networks is to share resources and help computers and devices work collaboratively, provide specific services, or execute specific tasks. The shared resources in a P2P network can be things such as processor usage, disk storage capacity, or network bandwidth. In fact, every resource and each asset that's available in a peer-to-peer network is shared among peers, without any central server being involved. Peers are both clients and servers at the same time.
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Each peer is equal to the others, and each peer has the same rights and duties as the others. In a way, peer-to-peer networks are the most egalitarian networks in the computer world.