Disk Operating System Commands - javatpoint
In this article, you will learn about the disk operating system commands. But before discussing the DOS commands, you should know about the disk operating system.
A disk operating system is an OS that operates on a hard drive. The operating system commands and regulates the computer's hardware and peripheral devices while also controlling the program and its operation. Microsoft created and released it as IBM PC DOS for the first time. In 1981, it also referred to the family of DOS known as MS-DOS.
The DOS is a 16-bit operating system, which implies that it may save and process 16 bits of data at once. It is a single-user, single-tasking OS. It is NON-GUI (Graphical User Interface), and it operates within a CUI (Character User Interface) environment.
The Dos operating system allows you to control the computer's behavior and functionality. It is a command-line operating system, which implies that you must use commands on the command line interface to achieve your desired results. The DOS has been improved from 1.00 to 1.1, 1.25, 6.0, 8.0, and so on over the years.
There are various features of the disk operating system. Some features of the operating system are as follows:
DOS Commands are instructions that allow Windows users to conduct tasks on files and folders. As you may know, a file is a container for a collection of information or data, and a directory is a collection of files. These are case insensitive.
The file name in MS-DOS is in 8dot format and broken into two parts - primary and secondary names. The primary name can be up to eight characters long, while the secondary name can be up to four characters with a dot. For example, in the filename Logo.jpg, the primary name is Logo, while the secondary name is .jpg. Secondary names are set for each type of file, so for system files, the secondary name is .sys, and for text files, it is .txt, etc. Special characters such as >, ., /, *, ?, |, & Space are not permitted in file or directory names. Here is a list of the most common file types, along with their default secondary names:
There are mainly two types of DOS Commands. These are as follows:
Internal commands are loaded into the system memory during system booting. These internal commands may not be seen, modified, detected, or deleted because they do not exist in the form of a file. An internal command is the MS-DOS command stored in system memory and loaded from command.com or cmd.exe. Internal commands include MD, DATE, COPY, CD, TIME, COPR CON, TYPE, etc.
External commands are stored in the system memory after system booting. These external commands may easily be viewed, changed, deleted, or copied as they are present in the form of a file. External commands include FORMAT, SYS, EDIT, PROMPT, COPY, PRINT, TREE, SORT, etc.
Internal commands are more common and essential to the functioning and use of Windows OS. They could be instantly accessible and always available in MS-DOS and Windows by embedding them in the command.com file.
External commands are really effective. They help in the resolution of problems, the enhancement of performance, and the execution of other tasks. External commands typically need more resources than internal commands. These commands keep separate from internal commands aids to decrease the load on Windows. They could also be added to Windows at any time by copying the file containing the external command to the computer.
Here, you will learn the commands of the disk operating system. There are three types of MS-DOS commands: Internal, External, and Recovery Console Commands.
There are various internal disk operating system commands. Some of the internal commands are as follows:
There are various external disk operating system commands. Some of the external commands are as follows:
There are various recovery console commands. Some of the recovery console commands are as follows:
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