MCQ Practice General knowledge 📖 A hard disk is divided into tracks which are further subdivided into : Favorite Practice Add to Book Explanation & Answer Detailed explanations and answers are restricted. Unlock full access by logging in to your account. 🔒 Unlock the detailed explanation and answers Log In / Sign Up This question appeared in BB Assistant Director Question Bank 2014 Question 156 Nextআবাকাস কি ?
