MS-DOS (TOPIC 4)

MS-DOS (TOPIC 4)

1. INTRODUCTION:

   • VERSION 1.0 (1981) = Original versions of DOCS     VERSION 1.1 (1982) = Supports double-sided disks VERSION 2.0 (1983) = Supports sub directories VERSION 2.01 (1983) = supports the us of  international symbols VERSION 2.25 (1983) = corrects errors    VERSION 3.0 (1984) =  support more character sets and bigger discsVERSION 3.1 (1984) = Supports PC networks, bug fixes VERSION 3.2 (1986) =  supports the use of 3.5-inch discs VERSION 3.3 (1987) = supports the use of PS/2 computer
   • - DOS is the abbreviation for DISK OPERATIONG SYSTEM which is produced by Microsoft for IBM PC use and was introduced in 1979
     • - first version of DOS was DOS 1.0 while DOS 7.0 was produced in 1995.

2. ACESS to MS-DOS

   • Steps to get into MS-DOS: (a) click the START button (b) click the PROGRAM instruction (c) click ACCESSORIES (d) click the MS-DOS Prompt submenu.
     • - you will be provided with a window showing a prompt like one below: C:\Windows>
       • to be fully under the control of MS-DOS ,the steps is: (1) click the START button (2) click SHUT DOWN (3) choose Restart in MS-DOS mode option.

3. IMPORTANT TERMS

   • (a) FILE : the main storage unit un the computer.
     • -
     • (b) DIRECTORY (folder) : used to store a group of inter-related files
       • (c) SUBDIRECTORY : a directory located in another directory
         • (d) ROOT DIRECTORY : all directories are subdirectories except one i.e. the root directory
           • (e) DRIVE : it is presented by a drive letter where it appears as a collection of directories

4. MS-DOS COMMANDS

   • -MS-DOS is a command driven interface because every command that is intended to be carried out is typed after the prompt sign
     • - this prompt means that you are in the C dive and Windows directory (folder) which is the command can be typed either in capital or small letters

5. BASIC COMMANDS

   • (a) ver: the system will display a version of the OS (b) dir: the system will display the contents of the directory (c) cd: Directory change
     • foe examples: C: \ Windows>dir

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