Cloud hosting uses a network of virtual servers (rather than one physical machine) to run applications. Trading systems on cloud hosting run on virtual machines spread across multiple data centers, allowing elastic resource usage. The key advantages are scalability (you can add CPU, RAM or storage on demand) and high availability (cloud providers have multiple data centers worldwide, reducing latency and providing failover). For forex robots, cloud hosting means you can start with a small server and quickly increase resources if your strategy needs more CPU or memory, and enjoy built‑in redundancy and global infrastructure to keep trading 24/7.