This book contains numerous concepts of computer and it is designed for junior as well as senior level nursing students. The text is presented using intuitive description, basic explanations with demonstrative illustrations. The fundamental concepts and algorithms covered in the book are often based on those used in both commercial and opensource operating systems. The entire text is arranged into seven chapters, named as Introduction to Computer; Disk and Windows Operating System; Microsoft Office; Multimedia; Internet; Statistical Packages; and Hospital Management System.