What are the main tasks solved by using caching in the system?

Caching in a system addresses several key tasks:

• Speeding up data access: frequently used data is stored for quick access, reducing delays in retrieval.
• Reducing load on data sources: decreases the number of requests to slow or costly resources (e.g., network, database).
• Optimizing resource usage: saves computational resources and bandwidth.

For example, in an iOS application, image caching allows not to reload images from the network repeatedly, but to retrieve them from local cache, which speeds up display and reduces data traffic.