Look at this external hard disk for the combine study of biology and chemistry subject of 11th class. The e- study materials are prepared by experts in the particular field and can be used for detail study of medical entrance exam preparation .This external hard drive contains:� 376 hours of 694 video parts with 180 GB size.� Supplemented with 1263 pages and 57 MB size of e- study material. � It covers Biology and Chemistry of XI standard CBSE and competitive exams like AIPMT and AIIMS.� Validity: 1 year. � Compatible OS: Windows XP/7/8 � License: Single Machine with Windows Operating System.