Cloud technology has been a transformative force in recent years, with cloud services like AWS and Microsoft's infrastructure leading the charge. However, there is a noticeable shift towards edge computing, a paradigm that brings computation closer to data sources, optimizing real-time computing and bandwidth-efficient communication. This shift is propelled by advancements in 5G, IoT, and artificial intelligence, with PubNub playing a crucial role through its real-time data streaming capabilities. Edge computing reduces latency and enhances sustainability by minimizing data transfer energy consumption, offering significant advantages in applications such as autonomous vehicles and facial recognition systems. While the cloud remains essential for scenarios requiring substantial computing resources and big data analytics, the integration of cloud and edge computing, facilitated by platforms like PubNub, promises improved performance and adaptability to trends such as hybrid cloud and multi-cloud computing. Historically, computing has oscillated between centralized and distributed models, and the rise of edge computing signifies a return to distributed architecture, with PubNub supporting both approaches across various industries, including healthcare, retail, and entertainment.