1. 视窗：
Windows 是一组由 Microsoft Incorporation 提供的各种专有图形操作系统。它也被称为Microsoft Windows 。它目前包括 Windows NT 和 Windows IoT 作为其家族成员。早些时候，它包括不再使用的 Windows 9x、Windows Mobile 和 Windows Phone。它是个人计算机中最常用的操作系统。微软于 1985 年推出了 Windows 的第一个版本。它具有带有模块的混合内核。
2. 迷你 3 ：
MINIX 3 是由 Andrew S. Tanenbaum 开发的免费开源操作系统。它是在 Berkeley Software Distribution 许可下发布的。它是一个类Unix操作系统。它是专为工作站设计的。它源自 MINIX 1 和 MINIX 2 操作系统。它基本上是用C语言和汇编语言编写的。 MINIX 3 的第一个版本于 2005 年推出，该操作系统使用的内核是微内核。
Windows 和 MINIX 3 的区别：
| S.No. | WINDOWS | MINIX 3 |
|---|---|---|
| 1. | It was developed by Microsoft Incorporation. | It was developed by Andrew S. Tanenbaum. |
| 2. | It was launched in 1985. | It was launched in 2005. |
| 3. | It is not an open source operating system. | It is an open source operating system. |
| 4. | Its target systems types are workstation, personal computers, media center, tablets and embedded systems. | Its target system types are workstations. |
| 5. | Computer architectures supported by Windows are IA-32, x86-64, IA-64, ARM, Alpha, MIPS and PowerPC. | Computer architectures supported by MINIX 3 is IA-32. |
| 6. | Its kernel type is Hybrid with modules. | Its kernel type is Microkernel. |
| 7. | Its native APIs are Win32 and NT API. | Its native APIs are POSIX. |
| 8. | It has the preferred license Proprietary and Source available. | It has the preferred license of BSD. |
| 9. | It has default GUI ‘on’. | It does not have default GUI ‘on’. |
| 10. | The non-native APIs supported through its subsystems are DOS API, Win16, POSIX and .NET. | The non-native APIs are not supported through its subsystems. |