Decentralized Cloud Computing (DCC), an innovative paradigm that utilizes blockchain technology and peer-to-peer (P2P) networks to establish a distributed marketplace for various computing services, contrasting it with traditional centralized cloud providers. It highlights the core benefits of DCC, such as enhanced data ownership, increased security, improved resilience, and cost efficiency, achieved by distributing resources across independent nodes. The text then explores the foundational technologies powering DCC, including blockchain, P2P networks, encryption, and sharding, while also acknowledging challenges like adoption barriers and performance variability. Finally, it elaborates on decentralized storage networks like Filecoin and Arweave, explaining their role as a critical component for Decentralized Applications (DApps) to securely and efficiently store data off-chain, showcasing specific DApps that leverage these networks.