Exactly both are different.
Decades ago the industries only had QC as a department. This department was responsible for inspecting defects or errors in the “PRODUCT”.
However this started costing a lot to the organisations on hiring inspectors, higher lead time etc.
That is when the Quality Assurance emerged. Now this department is responsible for identifying deviations or errors in the “PROCESS”.
So QA is a proactive activity where you prevent the defect from happening by attacking in the process itself.
For example a leading mobile manufacturing company spending l