Hello Friends! In this article, we will know about DOS in easy language and we always try to best content available for you. So let's start...
DOS: --
Any operating system which runs from the hard disk drive is termed a Disk Operating System ( D.O.S ). This also refers to the specific family of disk operating systems known as MS-DOS or Microsoft disk operating systems. Anything that commands and controls the computer’s hardware and peripheral devices with control over the program, and its functionality is known as the operating system. This operating system which runs through the hard disk is known as a disk operating system. For the first time, It was made and introduced for IBM by Microsoft, known as IBM PC DOS, in 1981.
"DOS is a single-user, single-tasking operating system with basic kernel functions that are non-reentrant: only one program at a time can use them, and DOS itself has no functionality to allow more than one program to execute at a time". The DOS kernel provides various functions for programs (an application program interface), like character I/O, file management, memory management, program loading, and termination.
DOS provides the ability for shell scripting via batch files (with the filename extension . BAT). Each line of a batch file is interpreted as a program to run. Batch files can also make use of internal commands, such as GOTO and conditional statements.
The operating system offers an application programming interface that allows the development of character-based applications, but not for accessing most of the hardware, such as graphics cards, printers, or mice. This required programmers to access the hardware directly, usually resulting in each application having its own set of device drivers for each hardware peripheral. Hardware manufacturers would release specifications to ensure device drivers for popular applications were available.
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Features of DOS
Here are some of the distinguishing features which you should clearly know :
- It is a 16-bit operating system.
- The mouse cannot be used to operate it e, Input in it is through basic system commands.
- The maximum space available is 2 GB.
- It is a free OS.
- It uses a text-based interface and requires text and codes to operate.
- It does not support a graphical interface.
- It is a single-user operating system.
- It is a Character-Based interface system.
- It helps make file management, e.g., creating, editing, deleting files, etc.