Read the following passage:
The concept of artificial intelligence has evolved significantly since its inception in the 1950s. Initially, AI researchers focused on creating machines that could perform specific tasks, such as playing chess or solving mathematical problems. However, modern AI systems have expanded beyond these narrow applications to encompass machine learning, natural language processing, and computer vision. Today, AI technologies are integrated into numerous aspects of daily life, from smartphone assistants to autonomous vehicles. Despite these advancements, the field continues to face challenges related to ethics, bias, and the need for interpretability. Researchers are actively working to develop more transparent and fair AI systems that can be trusted by users and policymakers alike.