Disk Operating System by Adrian

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Disk Operating System by Adrian

  1. 1. <ul><li>a collection of special programs that supervise and control the operation of the personal computer. </li></ul>DOS
  2. 2. <ul><li>DOS System Files </li></ul><ul><li>Internal DOS Command </li></ul><ul><li>External DOS Commands </li></ul><ul><li>DOS Utility Programs </li></ul>Parts of DOS
  3. 3. <ul><li>Used to denote three files, two hidden system files, IO. SYS and a visible file, COMMAND.COM. </li></ul><ul><li>COMMAND.COM - responsible for displaying the prompt </li></ul><ul><li>IO.SYS – handles the input and the output between the computer and its peripheral devices such as disks and printer. </li></ul><ul><li>MSDOS.SYS – forms the heart of DOS. It receive all request for DOS service functions and converts them. </li></ul>
  4. 4. <ul><li>Programs that reside in memory as part of DOS. </li></ul>a. Cls g. Dir b. Rename h. Vol c. Copy i. Type d. Prompt j. Time e. Date k. Mkdir f. Del / erase
  5. 5. <ul><li>Programs that are contained on disks as program files. These files have the extension .COM or .EXE as part of their name e.g. FORMAT.COM </li></ul>
  6. 6. <ul><li>Special programs used in ending files, linking programs together, or performing other specialized tasks. </li></ul>

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