Operating Systems 1
Contents
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1. Introduction to Operating Systems
1.1 Basic functions of an operating System.
1.2 Classes of operating Systems.
1.3 Operating systems in common use with microcomputers
1.4 Single User and Multi-User Systems
1.5 Multitasking
2. General Features of MS-DOS
2.1 The evolution of MS-DOS
2.2 Hardware requirements of MS-DOS
2.3 The structure of MS-DOS
3. MS-DOS Command Structure
3.1 Command.com (Command Line Interpreter)
3.2 Internal (resident) and External (transient) commands.
3.3 Category of Common Commands available under MS-DOS
4. MS-DOS File and Disk Organisation
4.1 Physical and logical Structure of a hard Disk
4.2 The structure of the Boot Record, FAT, DIR and Partition Tables.
4.3 File and Disk Management
4.4 Hard Disk Installation Procedures.
5. Implementation of MS-DOS System and BIOS Calls.
5.1 DOS and BIOS Interrupt Structure.
5.2 Use DOS & BIOS Calls in Assembler to perform operating system tasks.
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6. Hierarchical Directory Structure
7. Customising MS-DOS
8. MS_DOS Batch Files
9. Pipes, Filters and I/O Redirection Organisation
10. TSR's and Device Drivers.
11. Operating System Trends.
Unit 1: Introduction to Operating Systems.
Aim:
After completing this unit you should be able to describe the role and basic functions of an operating system.
An Operating System is a piece of software that is loaded into a computer's memory either into RAM or ROM. The heart of an operating system is its command interpreter that listens and then interprets or translates human commands into action by activating the appropriate control program that will carries out the requested action. We therefore consider an Operating systems to be a Human Interface between a Command Interpretive Control Program. We consider that an operating system is basically designed to meat the needs of end users and thereby...