1. Linux：
Linux是由Linus Torvalds开发的一组类似于Unix的开源操作系统。它是Linux发行版的打包。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。 1991年发布了第一个Linux版本。用于个人计算机的最新Linux版本是5.6(内核)。
2. AmigaOS 4：
AmigaOS 4是Hyperion Entertainment提供的一系列Amiga操作系统。它用于运行PowerPC微处理器。其设计主要基于Commodore的AmigaOS 3.1。它部分基于德国公司Haage and Partner的AmigaOS 3.9。它主要是用C语言编写的。它属于AmigaOS系列。 AmigaOS 4的第一个版本于2004年发布。AmigaOS4的最新稳定版本是4.1 Final Edition。也称为OS4或AOS4 。
Linux和AmigaOS 4之间的区别：
| LINUX | AMIGAOS 4 |
|---|---|
| It was developed by Linus Torvalds. | It was developed by Hyperion Entertainment. |
| It was launched in 1991. | It was launched in 2004. |
| Its target system types are embedded systems, mobile devices, personal computers, servers, mainframe computers and supercomputers. | Its target system types are workstation and personal computers. |
| Computer architectures supported by Linux are IA-32, x86-64, ARM, PowerPC and SPARC. | Computer architectures supported by AmigaOS 4 is PowerPC. |
| Kernel used in Linux is Monolithic. | Its kernel type is Microkernel. |
| Its package management depends on the distribution. | Its package management is Installer. |
| Its native APIs are Linux/POSIX. | Its native APIs are Proprietary. |
| It has the preferred license of GNU GPLv2 (kernel). | It has the preferred license Proprietary. |
| Its ppdate management depends on the distribution. | Its update management is AmiUpdate which is almost not needed. |
| The non-native APIs supported by its subsystems are Mono, Java, Win16 and Win32. | The non-native APIs supported by its subsystems are BSD subsets. |
| File systems supported by Linux are ext2, ext3, ext4, btrfs, ReiserFS, FAT, ISO 9660, UDF and NFS. | File systems supported by AmigaOS 4 are OFS, FFS, SFS, PFS, JXFS, FAT, ISO 9660, UDF and SMBFS. |