PACS provides a complete solution for radiology departments and other specialties like cardiology and ophthalmology by allowing access to images across the entire healthcare system from any web-based device. It offers faster diagnosis and treatment through integrated RIS/PACS workflows and specialized viewing for tasks like PET/CT scans. PACS also supports multi-site environments through standards compliance and can be customized to meet the specific needs of teleradiology or institution-wide image management.