A distributed system is a network of computers that work together to achieve a common goal, as if they were a single system. The term "distributed" refers to the fact that resources, such as processing power, memory, and storage, are spread across multiple devices, rather than being located in a single, central location. In a distributed system, each device has its own local resources and runs its own instance of the operating system, and they communicate with each other over a network to coordinate their actions and share information.

Examples of distributed systems include distributed computing systems, such as clusters and grids, peer-to-peer networks, cloud computing systems, and even the Internet itself. These systems can offer benefits such as improved scalability, reliability, and availability, as well as the ability to handle large amounts of data and processing requests. However, they also bring new challenges, such as the need to manage network latency, network failures, and data consistency.

Distributed system vs Cloud

Distributed systems and cloud computing are related concepts, but they have some important differences.

Distributed systems refer to a network of computers that work together as a single system, while cloud computing is a model for delivering IT resources and services over the Internet. In a cloud computing environment, the underlying infrastructure, platform, and software are provided by a third-party provider and are accessed over the network, typically through a web browser or API.

One key difference between distributed systems and cloud computing is the level of control and ownership. In a distributed system, an organization typically owns and operates all of the components, while in cloud computing, the infrastructure and resources are owned and operated by a third-party provider. This can result in different trade-offs in terms of cost, control, and customization.

Another difference is the scope of the technology. While distributed systems can encompass a wide range of technology and application types, cloud computing is typically focused on delivering IT resources and services as a utility, similar to electricity or water. This means that cloud computing often has a more narrow focus on delivering computing power, storage, and software as a service.

Overall, while both distributed systems and cloud computing can provide benefits such as improved scalability and reliability, they are different approaches to delivering technology resources and services and each has its own strengths and limitations.