MS-DOS By: Jezaniah Perez 6 comments

Microsoft Disk Operating System (MS – DOS)

TIM PATERSON

Tim Paterson (born 1956) is an American Computer Programmer, best known for creating 86-DOS, an operating system for the INTEL 8086 that emulated the API of CP/M and which formed the basis of MS-DOS, the most widely used personal computer operating system in the 1980s. 

MS-DOS -> is an operating system with a command-line interface used on personal computers. It translates keyboard input by the user into operations the computer can perform, it also oversees operations such as disk input and output.

MS-DOS ENVIRONMENT

DOS COMMANDS

Internal Commands –> a command that resides memory whenever DOS is active. 

CD or CHDIR - This command lets    you change directories.

   Ex. C:\>CD windows

   The result will be

   C:\WINDOWS>

CD.. – moves one directory back. 

CD\ - moves back to the root drive of the directory.

VER – displays the MS-DOS version number.   

   Ex. C:\ver

TIME – displays and sets the system time. 

   Ex. C:\time

DATE -  This command lets you set your systems date. 

    Ex. C:\>date

DEL or ERASE – removes a file you want deleted.

    Ex. C:\>del file.exe

MD – creates a directory

     Ex. C:\ mda

RD – remove or delete directory

     Ex. C:\ rd directoryname

DIR - This command gives a listing of most of the files and directories on a disk.

    Ex. C:\ dir

/W - gives the directory listing wide across your screen without times, dates, and sizes listed

     Ex. C:\ dir/w

CLS – This command clears the screen

     Ex. C:\cls

COPY - This command obviously copies files to different spots on your disks. It does not remove the source file after writing the new file.

     Ex. C:\copy mystuff.doc A:

EXIT – closes the command prompt

     Ex> C:\exit

External Commands  – >a command that resides on disk.

 ATTRIB – Function to set or remove file attributes: (Read-Only, System, Hidden). These attributes are used by a wide variety of programs to protect and classify files.

S – System Files

H – Hidden Files

R – Read-Only files

[+] - adds the attribute

[-] – removes attribute

[/S] – also applies to files on sub directories of current directory

[/D] – applies on folders

Ex. ATTRIB –s –h –r /s /d g:\*.*

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