1. AIX：
它是IBM提供的一系列专有操作系统。 AIX代表Advanced Interactive eXecutive。最初，它是为IBM RT PC RISC工作站设计的，后来又用于各种硬件平台，例如IBM RS / 6000系列，基于PowerPC的系统，System-370大型机，PS-2个人计算机和Apple Network Server。它是五个具有The Open Group的UNIX 03标准认证的商业操作系统之一。 AIX的第一个版本于1986年发布。AIX的最新稳定版本是7.2。
2. Haiku：
它是Haiku Incorporation提供的免费开源操作系统。它主要是为个人计算机设计的。它与挂起的操作系统BeOS有很多相似之处。它主要用C++编写，并提供了一个面向对象的API。该操作系统的开发始于2001年，并于2008年成为自托管操作系统。Haiku的第一个版本于2009年发布。Haiku的最新稳定版本是R1 / Beta。
AIX和Haiku之间的区别：
| AIX | Haiku |
|---|---|
| It was developed and is owned by IBM. | It was developed and is owned by Haiku Incorporation. |
| It was launched in 1986. | It was launched in 2009 |
| Its target system type is Server, NAS and workstation. | Its target system type is personal computers. |
| Computer architectures supported are POWER, PowerPC-AS, PowerPC and Power ISA. | Computer architectures supported are IA-32, PowerPC and x86-64 |
| Kernel type is Monolithic with modules. | Kernel type is Hybrid. |
| Package management is installp and RPM. | Package management is Ports collection (haikuport) |
| The native APIs are SysV/POSIX. | The native APIs are POSIX and BeOS API. |
| Preferred license is Proprietary. | Preferred license is MIT. |
| Update management is Service Update Management Assistant (SUMA). | Update management is pkgman and HaikuDepot. |
| File systems supported are JFS, JFS2, ISO 9660, UDF, NFS, SMBFS and GPFS. | File systems supported are BFS, FAT, ISO 9660, ext3 and NTFS. |