1. Linux：
Linux 是一组开源的类 Unix 操作系统，由 Linus Torvalds 开发。它是一个打包的 Linux 发行版。一些最常用的 Linux 发行版是 Debian、Fedora 和 Ubuntu。它基本上是用C语言和汇编语言编写的。 Linux 中使用的内核是 Monolithic 内核。 Linux 发行版的目标系统是云计算、嵌入式系统、移动设备、个人计算机、服务器、大型计算机和超级计算机。 Linux 的第一个版本于 1991 年推出。
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。
Linux 和 Haiku 的区别：
| S.No. | LINUX | HAIKU |
|---|---|---|
| 1. | It was developed by Linus Torvalds. | It was developed by Haiku Incorporation. |
| 2. | It was launched in 1991. | It was launched in 2009. |
| 3. | Its target system types are embedded systems, mobile devices, personal computers, servers, mainframe computers and supercomputers. | Its target system types are personal computers. |
| 4. | Computer architectures supported by Linux are IA-32, x86-64, ARM, PowerPC and SPARC. | Computer architectures supported by Haiku are IA-32, PowerPC and x86-64. |
| 5. | Its kernel type is Monolithic. | Its kernel type is Hybrid. |
| 6. | Its native APIs are LINUX/POSIX. | Its native APIs are POSIX and BeOS API. |
| 7. | It has preferred license of GNU GPLv2 (kernel). | It has the preferred license of MIT. |
| 8. | The non-native APIs supported through its subsystems are Mono, Java, Win16 and Win32. | The non-native APIs supported through its subsystems are Java and Qt. |
| 9. | File systems supported by Linux are ext2, ext3, ext4, btrfs, ReiserFS, FAT, ISO 9660, UDF and NFS. | File systems supported by Haiku are BFS, FAT, ISO 9660, ext3 and NTFS. |
| 10. | Its package management depends on the distribution. | Its package management is Ports collection (haikuport). |
| 11. | Its update management depends on the distribution. | Its update management is pkgman and HaikuDepot. |