logging in or signing up Disk Operating System eduardoveliz Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: Embed: Flash iPad Copy Does not support media & animations WordPress Embed Customize Embed URL: Copy Thumbnail: Copy The presentation is successfully added In Your Favorites. Views: 2031 Category: Science & Tech.. License: All Rights Reserved Like it (1) Dislike it (0) Added: September 09, 2010 This Presentation is Public Favorites: 1 Presentation Description No description available. Comments Posting comment... By: dkmahida (20 month(s) ago) please send me a ppt file on firstname.lastname@example.org Saving..... Post Reply Close Saving..... Edit Comment Close By: bhi.atul (30 month(s) ago) i need this application to download Saving..... Post Reply Close Saving..... Edit Comment Close Premium member Presentation Transcript Disk Operating System : Disk Operating System 2 Disk Operating System (DOS) : Disk Operating System (DOS) The Disk Operating System (DOS) set standards for Windows operating systems to follow. The command line is used to enter commands and to open programs. No multitasking or multiprocessor support. DOS Core Files : DOS Core Files DOS Commands : DOS Commands Internal commands are commands contained within the command.com file. External commands are located in the DOS directory. Internal Commands : Internal Commands External Commands : External Commands DOS System Boot Disk : DOS System Boot Disk A DOS system boot disk contains the necessary files needed to boot the computer. Booting refers to starting the computer and loading the OS. To create a DOS boot disk, the format a: /s command is used. Naming DOS Files : Naming DOS Files Eight point three (8.3) naming convention. Eight-character or less filename, a period (dot), and a three-character extension. Examples: config.sys autoexec.bat myfile.txt Common File Extensions : Common File Extensions Unacceptable Filename Characters : Unacceptable Filename Characters A period can only be used between the filename and extension. | + = > < ? : [ ] Warm and Cold Boot : Warm and Cold Boot Warm boot initiated by [Ctrl] [Alt] [Del]. Cold boot initiated by turning the computer on with the switch. Config.sys : Config.sys Used to load device drivers and to configure, disable, or enable OS features, such as number of files that can be opened. Used in new operating systems to support legacy software applications. Config.sys Commands : Config.sys Commands Autoexec.bat Commands : Autoexec.bat Commands Autoexec.bat : Autoexec.bat A text file used to load and run programs at startup. Required for legacy programs. Review : Review What are the names of the three core DOS files? io.sys msdos.sys command.com Review : Review Which of the following commands is used to create a DOS boot disk? chkdsk a: /s chkdsk a: /DOS format a: /s format a: /DOS Review : Review Which file is used to load device drivers and to configure, disable, or enable OS features, such as the number of files that can be opened? autoexec.bat config.bat autoexec.sys config.sys Review : Review What are some limitations of DOS? 8.3 character-naming convention. Command line only. No multitasking or multiprocessor support. You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.