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. 索拉里斯：
Solaris 是由 Oracle Corporation 提供的专有操作系统。它是一个类 Unix 操作系统。它是用C语言和C++编写的。它有一个混合源模型，即开放和关闭源。它最初由Sun Microsystems开发，2010 年被 Oracle Corporation 收购。 Solaris 的第一个版本于 1992 年推出。该操作系统中使用的内核是具有可动态加载模块的 Monolithic。
Windows 和 Solaris 的区别：
| S.No. | WINDOWS | SOLARIS |
|---|---|---|
| 1. | It was developed by Microsoft Incorporation. | It was developed by Sun Microsystems. |
| 2. | It was launched in 1985. | It was launched in 1992. |
| 3. | It is owned by Microsoft Incorporation. | It is owned by Oracle Corporation. |
| 4. | Its target systems types are workstation, personal computers, media center, tablets and embedded systems. | Its target system types are server and workstation. |
| 5. | Computer architectures supported by Windows are IA-32, x86-64, IA-64, ARM, Alpha, MIPS and PowerPC. | Computer architectures supported by Solaris are IA-32, x86-64 and SPARC. |
| 6. | Its kernel type is Hybrid with modules. | Its kernel type is Monolithic with dynamically loadable modules. |
| 7. | Its native APIs are Win32 and NT API. | Its native APIs are SysV/POSIX, GTK and Java. |
| 8. | It has the preferred license Proprietary and Source available. | It has the preferred license of CDDL. |
| 9. | The non-native APIs supported through its subsystems are DOS API, Win16, POSIX and .NET. | The non-native APIs supported through its subsystems are Win16, Win32, Mono and Linux. |
| 10. | Its package management is MSI or custom installers. | Its package management is SysV packages or Image Packaging System. |
| 11. | Its update management is Windows Update. | Its update management is Image Packaging System. |
| 12. | File systems supported by Windows are NTFS, FAT, ISO 9660, UDF, HFS+, FATX and HFS. | File systems supported by Solaris are UFS, ZFS, ext2, FAT, ISO 9660, UDF, NFS and QFS. |