WHO IS IN CONTROL? YOUR COMPUTER OR YOU?
WHAT HAPPENS WHEN YOU TURN ON THE SWITCH
Boot-Up Sequence ROM/BIOS POST Switches or  CMOS Data A: C: Master Boot Record Cyl=0 Head=0 Sec=1 (valid 55AA?) Bootable P...
Boot-Up Sequence
Boot-Up Sequence ROM/BIOS
Boot-Up Sequence ROM/BIOS POST
Boot-Up Sequence ROM/BIOS POST Switches or  CMOS Data
Boot-Up Sequence ROM/BIOS POST Switches or  CMOS Data A:
Boot-Up Sequence ROM/BIOS POST Switches or  CMOS Data A: C:
Boot-Up Sequence ROM/BIOS POST Switches or  CMOS Data A: C: Master Boot Record Cyl=0 Head=0 Sec=1 (valid 55AA?)
Disk Structure OS/2  Novell  Unix  MS-DOS  MS-DOS allows for a maximum of four different operating systems on the same phy...
Boot-Up Sequence ROM/BIOS POST Switches or  CMOS Data A: C: Master Boot Record Cyl=0 Head=0 Sec=1 (valid 55AA?) Bootable P...
Boot-Up Sequence ROM/BIOS POST Switches or  CMOS Data A: C: Master Boot Record Cyl=0 Head=0 Sec=1 (valid 55AA?) Bootable P...
Boot-Up Sequence
Boot-Up Sequence ROM/BIOS POST Switches or  CMOS Data A: C: Master Boot Record Cyl=0 Head=0 Sec=1 (valid 55AA?) Bootable P...
Boot-Up Sequence
Boot-Up Sequence ROM/BIOS POST Switches or  CMOS Data A: C: Master Boot Record Cyl=0 Head=0 Sec=1 (valid 55AA?) Bootable P...
Boot-Up Sequence ROM/BIOS POST Switches or  CMOS Data A: C: Master Boot Record Cyl=0 Head=0 Sec=1 (valid 55AA?) Bootable P...
Boot-Up Sequence ROM/BIOS POST Switches or  CMOS Data A: C: Master Boot Record Cyl=0 Head=0 Sec=1 (valid 55AA?) Bootable P...
Boot-Up Sequence ROM/BIOS POST Switches or  CMOS Data A: C: Master Boot Record Cyl=0 Head=0 Sec=1 (valid 55AA?) Bootable P...
Boot-Up Sequence ROM/BIOS POST Switches or  CMOS Data A: C: Master Boot Record Cyl=0 Head=0 Sec=1 (valid 55AA?) Bootable P...
Boot-Up Sequence ROM/BIOS POST Switches or  CMOS Data A: C: Master Boot Record Cyl=0 Head=0 Sec=1 (valid 55AA?) Bootable P...
RAM GETS LOADED   BIOS DATA COMMAND.COM DOS
Working From The  Command Prompt C: >_
DOS BASICS DOS = DISK OPERATING SYSTEM
<ul><li>DOS maintains the data </li></ul><ul><li>DOS allows data transfer </li></ul><ul><li>DOS allocates space for data <...
<ul><li>Command Processing </li></ul><ul><li>Data Management </li></ul>The Basic DOS Functions
Simple DOS Commands <ul><li>DATE </li></ul><ul><li>TIME </li></ul><ul><li>VER </li></ul><ul><li>CLS </li></ul>
System Resource Commands <ul><li>MEM </li></ul><ul><li>CHKDSK and SCANDISK </li></ul>
Getting help <ul><li>HELP </li></ul><ul><li>HELP [COMMAND] </li></ul>
DOS is a Filing System <ul><li>DOS maintains the data </li></ul><ul><li>DOS allows data transfer </li></ul><ul><li>DOS tra...
Directories Organize Subjects <ul><li>Root Directory </li></ul><ul><ul><li>Start-up files </li></ul></ul><ul><ul><li>Progr...
Basic DOS Commands <ul><li>Looking At Files </li></ul><ul><li>Navigating Through the  Directory  Structure </li></ul><ul><...
<ul><li>Purpose </li></ul><ul><ul><li>Displays a list of a directory's files and subdirectories. </li></ul></ul><ul><li>Sy...
MOVING WITH DOS  <ul><li>MD (Make Directory) </li></ul><ul><li>CD (Change Directory) </li></ul><ul><li>RD (Remove Director...
VIEWING WITH DOS <ul><li>TREE View the directory structure </li></ul><ul><li>TYPE Displays a text file </li></ul><ul><li>P...
WORKING WITH FILES <ul><li>Creating </li></ul><ul><li>Copying </li></ul><ul><li>Renaming </li></ul><ul><li>Removing </li><...
CREATING A FILE <ul><li>COPY CON stands for copy console </li></ul><ul><li>It is used to create files </li></ul><ul><li>CO...
COPYING A FILE <ul><li>COPY  - leaves the original file intact  - puts a duplicate copy at the location    specified </li>...
CHANGING A FILE NAME <ul><li>REN stands for rename  </li></ul><ul><li>REN OLDNAME NEWNAME  - changes the original file nam...
REMOVING A FILE <ul><li>DEL stands for DELETE </li></ul><ul><li>DEL FILENAME  - deletes the file named </li></ul>
Starting A Program  DOS Style <ul><li>EXE </li></ul><ul><li>COM </li></ul><ul><li>BAT </li></ul><ul><li>SYS </li></ul>
FORMATING A FLOPPY <ul><li>Aligns the magnetic particles on the disk surface </li></ul><ul><li>Divides the disk into - cyl...
Disk Structure 0 1 2 3 Cyl = 0 Cyl = 200
Disk Structure 1 2 3 4 5 6 7 8 Each sector is a continious linear stream of magnitized bits. By design, regardless of each...
Floppy Disk Specifications <ul><li>5 1/4 160K 1 40 8 SS / DD 2 </li></ul><ul><li>5 1/4 180K 1 40 9 SS / DD 2 </li></ul><ul...
Some Hard Disk Specifications <ul><li>1 4 306 17   10 meg </li></ul><ul><li>2 4 615 17   21 meg </li></ul><ul><li>3 6 615 ...
Calculating Hard Disk Capacity <ul><li>What you need to know to figure this out... </li></ul><ul><ul><li>Number of sides /...
Hard Disk Controllers ST-506 Seagate Tech- nology 506 EIDE / IDE Integrated Device  Electronics ESDI  Enhanced System Devi...
Congratulations! You  are on  your way!
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C Dos Bas

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  • File name: Dos_bas.ppt This presentation provides an introduction to DOS Boot process File structure Commands Formatting
  • C Dos Bas

    1. 1. WHO IS IN CONTROL? YOUR COMPUTER OR YOU?
    2. 2. WHAT HAPPENS WHEN YOU TURN ON THE SWITCH
    3. 3. Boot-Up Sequence ROM/BIOS POST Switches or CMOS Data A: C: Master Boot Record Cyl=0 Head=0 Sec=1 (valid 55AA?) Bootable Partition? Boot Record (pointed to by C/H/S in MBR) (valid 55AA?) IO.SYS DBLSPACE.BIN (not all versions) MSDOS.SYS CONFIG.SYS (optional) COMMAND.COM (shell command in config.sys may change this!) AUTOEXEC.BAT (optional)
    4. 4. Boot-Up Sequence
    5. 5. Boot-Up Sequence ROM/BIOS
    6. 6. Boot-Up Sequence ROM/BIOS POST
    7. 7. Boot-Up Sequence ROM/BIOS POST Switches or CMOS Data
    8. 8. Boot-Up Sequence ROM/BIOS POST Switches or CMOS Data A:
    9. 9. Boot-Up Sequence ROM/BIOS POST Switches or CMOS Data A: C:
    10. 10. Boot-Up Sequence ROM/BIOS POST Switches or CMOS Data A: C: Master Boot Record Cyl=0 Head=0 Sec=1 (valid 55AA?)
    11. 11. Disk Structure OS/2 Novell Unix MS-DOS MS-DOS allows for a maximum of four different operating systems on the same physical disk drive
    12. 12. Boot-Up Sequence ROM/BIOS POST Switches or CMOS Data A: C: Master Boot Record Cyl=0 Head=0 Sec=1 (valid 55AA?) Bootable Partition?
    13. 13. Boot-Up Sequence ROM/BIOS POST Switches or CMOS Data A: C: Master Boot Record Cyl=0 Head=0 Sec=1 (valid 55AA?) Bootable Partition? Boot Record (pointed to by C/H/S in MBR) (valid 55AA?)
    14. 14. Boot-Up Sequence
    15. 15. Boot-Up Sequence ROM/BIOS POST Switches or CMOS Data A: C: Master Boot Record Cyl=0 Head=0 Sec=1 (valid 55AA?) Bootable Partition? Boot Record (pointed to by C/H/S in MBR) (valid 55AA?) IO.SYS
    16. 16. Boot-Up Sequence
    17. 17. Boot-Up Sequence ROM/BIOS POST Switches or CMOS Data A: C: Master Boot Record Cyl=0 Head=0 Sec=1 (valid 55AA?) Bootable Partition? Boot Record (pointed to by C/H/S in MBR) (valid 55AA?) IO.SYS DBLSPACE.BIN (not all versions)
    18. 18. Boot-Up Sequence ROM/BIOS POST Switches or CMOS Data A: C: Master Boot Record Cyl=0 Head=0 Sec=1 (valid 55AA?) Bootable Partition? Boot Record (pointed to by C/H/S in MBR) (valid 55AA?) IO.SYS DBLSPACE.BIN (not all versions) MSDOS.SYS
    19. 19. Boot-Up Sequence ROM/BIOS POST Switches or CMOS Data A: C: Master Boot Record Cyl=0 Head=0 Sec=1 (valid 55AA?) Bootable Partition? Boot Record (pointed to by C/H/S in MBR) (valid 55AA?) IO.SYS DBLSPACE.BIN (not all versions) MSDOS.SYS CONFIG.SYS (optional)
    20. 20. Boot-Up Sequence ROM/BIOS POST Switches or CMOS Data A: C: Master Boot Record Cyl=0 Head=0 Sec=1 (valid 55AA?) Bootable Partition? Boot Record (pointed to by C/H/S in MBR) (valid 55AA?) IO.SYS DBLSPACE.BIN (not all versions) MSDOS.SYS CONFIG.SYS (optional) COMMAND.COM (shell command in config.sys may change this!)
    21. 21. Boot-Up Sequence ROM/BIOS POST Switches or CMOS Data A: C: Master Boot Record Cyl=0 Head=0 Sec=1 (valid 55AA?) Bootable Partition? Boot Record (pointed to by C/H/S in MBR) (valid 55AA?) IO.SYS DBLSPACE.BIN (not all versions) MSDOS.SYS CONFIG.SYS (optional) COMMAND.COM (shell command in config.sys may change this!) AUTOEXEC.BAT
    22. 22. Boot-Up Sequence ROM/BIOS POST Switches or CMOS Data A: C: Master Boot Record Cyl=0 Head=0 Sec=1 (valid 55AA?) Bootable Partition? Boot Record (pointed to by C/H/S in MBR) (valid 55AA?) IO.SYS DBLSPACE.BIN (not all versions) MSDOS.SYS CONFIG.SYS (optional) COMMAND.COM (shell command in config.sys may change this!) AUTOEXEC.BAT
    23. 23. RAM GETS LOADED BIOS DATA COMMAND.COM DOS
    24. 24. Working From The Command Prompt C: >_
    25. 25. DOS BASICS DOS = DISK OPERATING SYSTEM
    26. 26. <ul><li>DOS maintains the data </li></ul><ul><li>DOS allows data transfer </li></ul><ul><li>DOS allocates space for data </li></ul><ul><li>DOS tracks data location </li></ul>DOS allows Users to Interact with Data
    27. 27. <ul><li>Command Processing </li></ul><ul><li>Data Management </li></ul>The Basic DOS Functions
    28. 28. Simple DOS Commands <ul><li>DATE </li></ul><ul><li>TIME </li></ul><ul><li>VER </li></ul><ul><li>CLS </li></ul>
    29. 29. System Resource Commands <ul><li>MEM </li></ul><ul><li>CHKDSK and SCANDISK </li></ul>
    30. 30. Getting help <ul><li>HELP </li></ul><ul><li>HELP [COMMAND] </li></ul>
    31. 31. DOS is a Filing System <ul><li>DOS maintains the data </li></ul><ul><li>DOS allows data transfer </li></ul><ul><li>DOS tracks data location </li></ul>A: B: C: D: B: C: D:
    32. 32. Directories Organize Subjects <ul><li>Root Directory </li></ul><ul><ul><li>Start-up files </li></ul></ul><ul><ul><li>Program Directories </li></ul></ul><ul><li>Sub-directories </li></ul><ul><ul><li>Organizational catagories </li></ul></ul><ul><ul><li>Program files </li></ul></ul>a: DOS LOTUS PAYROLL ACCTRECV WP51 LEGAL LETTERS COMMAND.COM AUTOEXEC.BAT CONFIG.SYS TOMJONES.DOC 01-02-92.LET LSASFJSFSD SDFASDFAS ASDFSFASF ASDFSFDASF LSASFJSFSD SDFASDFAS ASDFSFASF ASDFSFDASF LSASFJSFSD SDFASDFAS ASDFSFASF ASDFSFDASF LSASFJSFSD SDFASDFAS ASDFSFASF ASDFSFDASF LSASFJSFSD SDFASDFAS ASDFSFASF ASDFSFDASF
    33. 33. Basic DOS Commands <ul><li>Looking At Files </li></ul><ul><li>Navigating Through the Directory Structure </li></ul><ul><li>Copying and Organizing Files </li></ul>
    34. 34. <ul><li>Purpose </li></ul><ul><ul><li>Displays a list of a directory's files and subdirectories. </li></ul></ul><ul><li>Syntax </li></ul><ul><ul><li>dir [drive:][path][filename] [/p] [/w] [/a[[:]attributes]] [/o[[:]sortorder]] [/s] [/b] [/l] </li></ul></ul><ul><li>Example </li></ul><ul><ul><li>DIR A:DOS /W </li></ul></ul>DIR
    35. 35. MOVING WITH DOS <ul><li>MD (Make Directory) </li></ul><ul><li>CD (Change Directory) </li></ul><ul><li>RD (Remove Directory) </li></ul>
    36. 36. VIEWING WITH DOS <ul><li>TREE View the directory structure </li></ul><ul><li>TYPE Displays a text file </li></ul><ul><li>PRINT Prints a text file </li></ul>
    37. 37. WORKING WITH FILES <ul><li>Creating </li></ul><ul><li>Copying </li></ul><ul><li>Renaming </li></ul><ul><li>Removing </li></ul>
    38. 38. CREATING A FILE <ul><li>COPY CON stands for copy console </li></ul><ul><li>It is used to create files </li></ul><ul><li>COPY CON MYFILE.TXT - starts the creation of the file myfile.txt </li></ul><ul><li>After typing the information type F6 to stop entering then press ENTER. The file is created </li></ul>
    39. 39. COPYING A FILE <ul><li>COPY - leaves the original file intact - puts a duplicate copy at the location specified </li></ul><ul><li>MOVE - moves the original file to the new location and removes it from the original location </li></ul>
    40. 40. CHANGING A FILE NAME <ul><li>REN stands for rename </li></ul><ul><li>REN OLDNAME NEWNAME - changes the original file name to the new file name </li></ul>
    41. 41. REMOVING A FILE <ul><li>DEL stands for DELETE </li></ul><ul><li>DEL FILENAME - deletes the file named </li></ul>
    42. 42. Starting A Program DOS Style <ul><li>EXE </li></ul><ul><li>COM </li></ul><ul><li>BAT </li></ul><ul><li>SYS </li></ul>
    43. 43. FORMATING A FLOPPY <ul><li>Aligns the magnetic particles on the disk surface </li></ul><ul><li>Divides the disk into - cylinders - sectors </li></ul><ul><li>Command - FORMAT [DRIVE] [SWITCHES] </li></ul>
    44. 44. Disk Structure 0 1 2 3 Cyl = 0 Cyl = 200
    45. 45. Disk Structure 1 2 3 4 5 6 7 8 Each sector is a continious linear stream of magnitized bits. By design, regardless of each individual sector’s physical length, each sector hold 512 bytes of data. One sector Read/Write Head
    46. 46. Floppy Disk Specifications <ul><li>5 1/4 160K 1 40 8 SS / DD 2 </li></ul><ul><li>5 1/4 180K 1 40 9 SS / DD 2 </li></ul><ul><li>5 1/4 320K 2 40 8 DS / DD 2 </li></ul><ul><li>5 1/4 360K 2 40 9 DS / DD 2 </li></ul><ul><li>5 1/4 1.2 m 2 80 15 DS / HD 2 </li></ul><ul><li>3 1/2 720K 2 80 9 DS / DD 2 </li></ul><ul><li>3 1/2 1.44 m 2 80 18 DS / HD 1 </li></ul><ul><li>3 1/2 2.88 m 2 80 36 DS / ED 1* </li></ul>Size Capacity H Cyl S Desc. SPC H = Head, Cyl = Cylinder, S = Sector SPC = Sectors per cluster * 2.88 meg requires IDE interface
    47. 47. Some Hard Disk Specifications <ul><li>1 4 306 17 10 meg </li></ul><ul><li>2 4 615 17 21 meg </li></ul><ul><li>3 6 615 17 31 meg </li></ul><ul><li>27 7 698 17 41 meg </li></ul><ul><li>19 7 1024 17 61 meg </li></ul><ul><li>9 15 900 17 115 meg </li></ul><ul><li>38 15 1224 34 315 meg </li></ul><ul><li>? 15 1657 53 674 meg </li></ul>Disk Type Heads Cylinders Sectors Capacity
    48. 48. Calculating Hard Disk Capacity <ul><li>What you need to know to figure this out... </li></ul><ul><ul><li>Number of sides / heads </li></ul></ul><ul><ul><li>Number of Cylinders </li></ul></ul><ul><ul><li>Number of Sectors per Cylinder </li></ul></ul>Multiply : Heads x Cylinders x Sectors per cylinder x 512 byte constant 4 x 615 x 17 x 512 Total maximum capacity ==> 21,411,840 bytes
    49. 49. Hard Disk Controllers ST-506 Seagate Tech- nology 506 EIDE / IDE Integrated Device Electronics ESDI Enhanced System Device Interface SCSI SCSI-2 Small Computer System Interface 2 2 / 4 4 7 Controller # of Drives Transfer Avg. Access Type Supported Rate Time 5 Mbps 7.5 / 10 Mbps 10 Mbps 4 Mbps 10 Mbps 28 ms 10 / 8 ms 16 ms 14 ms
    50. 50. Congratulations! You are on your way!

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