In the context of systems, components are the individual parts or elements that work together to achieve a specific function or purpose. Here are five common components of a system:

1. **Input**: The input component is responsible for receiving or collecting data, information, or resources from external sources. It is the starting point for the system to process.

2. **Processing**: This component carries out the core functions or operations of the system. It involves manipulating, analyzing, or transforming the input data to produce desired outputs.

3. **Output**: The output component is responsible for delivering the results or outcomes of the system’s processing to the intended recipients or users. It represents the end point of the system.

4. **Feedback**: Feedback is a crucial component that provides information about the system’s performance. It helps in monitoring, adjusting, and improving the system’s operations.

5. **Control**: The control component manages and regulates the activities of the system. It sets parameters, rules, or conditions to ensure that the system operates effectively and efficiently.

These components are essential for the functioning of various systems, whether they are related to technology, biology, engineering, or any other field. Depending on the type and complexity of the system, there may be additional components and interactions among them.