OS1: Types of Operating System -Unit 1Disk operating system

Introduction The previous unit introduced the various types of OS based on different criteria. In this unit, you will be taken through the disk operating system and its various characteristics and examples. 2.0 Objectives • At the end of this unit, the students should be able to: • Describe the disk operating system (DOS) • List the classes of DOS we have • State what distinguishes the different classes of DOS