DOS，Linux和Windows操作系统之间的区别

本文重点讨论三种不同操作系统 DOS、Windows 和 Linux 之间的区别。

DOS ： DOS 代表磁盘操作系统，它是直到 1995 年在 IBM PC 中流行的操作系统。它是一个单任务操作系统，即一次可以执行一项任务。它基于命令行界面，其中必须以命令形式向计算机提供指令。它从硬盘、软盘或任何其他存储设备运行，从而为程序的执行提供环境。它占用的内存更少。为了使用超过 64kb 的内存，使用了内存扩展器，而旧版 Windows 过去使用的内存更多。它最初仅发布给为其硬件添加支持的 OEM（原始设备制造商）。它最终向公众发布。

Windows ： Windows 是 Microsoft 的产品。它是一个具有各种版本的操作系统，Windows 10 是最新版本。它是一个基于图形的用户界面。用户通过在鼠标、键盘或触摸屏的帮助下单击或选择图标和图像来向计算机发出命令。 Windows 最初是在 DOS 之上运行的 DOS 扩展程序。 Windows 9x 系列包括 Windows 95、Windows 98、Windows 98SE 和 Windows ME，运行在 MS-DOS 之上，能够直接运行 DOS 程序。 Windows NT 是单独发布的并且是可移植的，最初它是用 C 和 C++ 语言编写的，其中处理器可靠性代码分为 DAL 和 HLL，并且被设计为比 DOS 和 Windows 9x 系列更安全。 Windows NT 系列包括 Windows NT 3.x、4.x、Windows 2000、Windows XP、Windows Vista、Windows 7 等。由于可用于调试和错误处理的各种工具，Windows 比 DOS 更可靠并且可以轻松处理错误。

Linux ： Linux 是一个自由分布的多任务和多用户操作系统，其行为类似于 UNIX。它最初是由芬兰学生 LINUS TORVALDS 于 1991 年开发的。它是最著名和最常用的开源操作系统。它是一个基于 UNIX 的跨平台操作系统，可以安装在 PC 和笔记本电脑上。

DOS、Windows和Linux之间的比较

Feature	DOS	WINDOWS	LINUX
Development	Developed by Microsoft.	Developed by Microsoft.	Linux is developed by Open Source Development.
License	Proprietary	Proprietary	Open-source
Interface	It supports a Text-Based/ Command-line interface.	It supports Graphical User Interface	It supports both Command-line interfaces/Graphical user interfaces.
Multitasking	DOS is unable to run multiple processes at the same time.	Windows supports multitasking	Linux supports multitasking
Distribution	DOS was distributed by Microsoft.	Windows was distributed by Microsoft.	Linux is distributed by various vendors, such as Red Hat, Fedora, etc.
Usage	DOS can be installed on standalone PC desktops or laptops.	Windows can be installed on PC desktops, laptops, servers, and some mobile phones.	Linux can be installed on a wide variety of computer hardware, mobile phones, and video game consoles to mainframes and supercomputers.
Customization	Expansions for DOS can be downloaded so that one can customize them.	It is possible to change the background and general color schemes and fonts for windows desktops.	One can rewrite the code for Linux so that it can be customized further.
Reliability	DOS is not very reliable because it crashes easily if a program doesn’t open properly or a wrong command is issued.	Windows is not even reliable, with it crashing/needing to be restarted all the time.	Linux is very reliable and is known for being run for months or even years without needing to be rebooted.
Management	DOS is not very easy to manage.	Easy to manage.	Difficult to manage.
Cost	DOS is free of charge to download.	It is not free.	Linux is free to download.
User- Support	DOS is a single-user operating system.	Windows is a multi-user operating system.	Linux is a multi-user operating system.