एक ऑपरेटिंग सिस्टम एक इंटरफेस के रूप में कार्य करता है जो उपयोगकर्ता से निम्नलिखित में से किसकी आंतरिक जटिलताओं को छुपाता है?

The Dandi March, also known as the Salt Satyagraha, was led by which influential leader?

Which act formally granted independence to India, marking the end of British rule?

Who was the key figure in establishing the Indian National Congress?