Notes on lesson on Operating System |

Operating System

After completing this lesson, student must be able to:

  • Manage file, folder and create a new folder in my documents.
  • Describe about system tools.
  • Explain the types and function of OS.
  • Explain MS-DOS with its advantages and disadvantages.
  • Describe about Windows XP.


An Introduction to Operating System

An OS is a collection of system program that together controls the operations of computer system. Example:UNIX, MS-DOS, MS-Windows, Linux etc. This note contains brief description on the Operating System.

MS-DOS (Microsoft Disk Operating System)

The booting is a process of loading system files into working memory (RAM) to become ready to work. There are two types of booting: cold booting and warm booting. This note contains short description on booting , file directory and DOS commands.

Internal Commands

Internal command are built in the COMMAND.COM files. It can be executed from any DOS prompt because each of the internal commands are memory resident. Some of the examples of internal commands are: DIR, CLS, COPY etc. This note contains further description on internal commands used in DOS.

External Command

Commands that need external additional file with are external commands. Example: XCOPY, CHKDSK, LABEL, TREE etc. This note contains brief description on external command used in DOS.

Windows XP

Like previous versions of windows, Windows XP uses a desktop for the standard interface. This note discusses outlook of the desktop screen of Windows XP.

File Management

Files are collections of information. Folder is the location name that stores so many files. This note contains information on how to manage our files using file management.

System Tools

Windows XP provides some basic tools to make the maintenance process. This note contains description on System Tools.