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. HP-UX：
HP-UX 是由 HP Enterprise 提供的闭源操作系统。它是一个类 Unix 操作系统，其设计基于 Unix System V。它基本上是为 HP 计算机设计的。它的目标系统是服务器。它是通过 The Open Group 的 UNIX 03 标准认证的五个商业操作系统之一。 HP-UX 的第一个版本于 1983 年推出。它具有带有动态可加载模块的 Monolithic 内核。
Linux 和 HP-UX 的区别：
| S.No. | LINUX | HP-UX |
|---|---|---|
| 1. | It was developed by Linus Torvalds. | It was developed by HP Enterprise. |
| 2. | It was launched in 1991. | It was launched in 1983. |
| 3. | Its target system types are embedded systems, mobile devices, personal computers, servers, mainframe computers and supercomputers. | Its target system types are servers. |
| 4. | Computer architectures supported by Linux are IA-32, x86-64, ARM, PowerPC and SPARC. | Computer architectures supported by HP-UX are PA-RISC and IA-64. |
| 5. | Its kernel type is Monolithic. | Its kernel type is Monolithic with dynamically loadable modules. |
| 6. | Its native APIs are LINUX/POSIX. | Its native APIs are SysV/POSIX. |
| 7. | It has preferred license of GNU GPLv2 (kernel). | It has the preferred license Proprietary. |
| 8. | The non-native APIs supported through its subsystems are Mono, Java, Win16 and Win32. | The non-native APIs are not supported through its subsystems. |
| 9. | Its package management depends on the distribution. | Its package management is SD or swinstall. |
| 10. | Its update management depends on the distribution. | Its update management is SWA (HP-UX Software Assistant)). |
| 11. | File systems supported by Linux are ext2, ext3, ext4, btrfs, ReiserFS, FAT, ISO 9660, UDF and NFS. | File systems supported by HP-UX are VxFS, HFS, CDFS, EVFS, NFS and CIFS. |