1. 系统：
macOS 是 Apple Incorporation 提供的一系列专有图形操作系统。它早期被称为 Mac OS X，后来被称为 OS X。它是专门为 Apple mac 计算机设计的。它基于Unix操作系统。它是使用 C、C++、Objective-C、汇编语言和 Swift 开发的。它是个人计算机中仅次于 Windows 的第二大常用操作系统。苹果公司于 2001 年推出了 macOS 的第一个版本。
2.俳句：
Haiku 是由 Haiku Incorporation 提供的免费开源操作系统。它主要是为个人电脑设计的。它与暂停的操作系统 BeOS 非常相似。它主要用 C++ 编写并提供面向对象的 API。该操作系统的开发始于2001年，操作系统于2008年成为自托管。Haiku的第一个版本于2009年推出。
macOS 和 Haiku 的区别：
| S.No. | MACOS | HAIKU |
|---|---|---|
| 1. | It was developed and is owned by Apple Incorporation. | It was developed and is owned by Haiku Incorporation. |
| 2. | It was launched in 2001. | It was launched in 2009. |
| 3. | Its target system types are workstation, personal computers and embedded systems. | Its target system types are personal computers. |
| 4. | Computer architectures supported by macOS are x86-64(10.4.7-present), IA-32(10.4.4-10.6.8) and PowerPC(10.0-10.5.8). | Computer architectures supported by Haiku are IA-32, PowerPC and x86-64. |
| 5. | Its kernel type is Hybrid with modules. | Its kernel type is Hybrid. |
| 6. | Its package management is macOS installer. | Its package management is Ports collection (haikuport). |
| 7. | Its update management is Software Update. | Its update management is pkgman and HaikuDepot. |
| 8. | Its native APIs are Carbon, Cocoa, Java and BSD-POSIX. | Its native APIs are POSIX and BeOS API. |
| 9. | It has preferred license of Proprietary, APSL and GNU GPL. | It has preferred license of MIT. |
| 10. | The non-native APIs supported by its subsystems are Toolbox, Win16 and Win32. | The non-native APIs supported by its subsystems are Java and Qt. |
| 11. | File systems supported by macOS are HFS+, APFS, HFS, UFS, AFP, ISO 9660, FAT, UDF, NFS, SMBFS, NTFS, FTP, WebDAV and ZFS. | File systems supported by Haiku are BFS, FAT, ISO 9660, ext3 and NTFS. |