1. 系统：
macOS 是 Apple Incorporation 提供的一系列专有图形操作系统。它早先被称为 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. Chrome 操作系统：
Chrome OS 是 Google 提供的基于 Linux 内核的操作系统。它使用 Google Chrome 网络浏览器作为主要用户界面。它是使用 C、C++、Javascript、HTML5、 Python和 Rust 开发的。它用于称为 Chromebook 的个人计算机。 Chrome OS 的第一个版本于 2009 年由谷歌推出。谷歌宣布它是一种用户数据和应用程序都驻留在云中的操作系统。 macOS 和 Chrome 操作系统的区别：
| S.No. | MACOS | CHROME OS |
|---|---|---|
| 1. | It was developed and is owned by Apple Incorporation. | It was developed and is owned by Google LLC. |
| 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 Chromebook, Chromebox, Chromebase and tablets. |
| 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 Chrome OS are ARM, IA-32 and x86-64. |
| 5. | Its kernel type is Hybrid with modules. | Its kernel type is Monolithic with modules. |
| 6. | Its package management is macOS installer. | Its package management is Portage. |
| 7. | It is specifically designed for MacBook. | It is specifically designed for Chromebook. |
| 8. | Its native APIs are Carbon, Cocoa, Java and BSD-POSIX. | Its native APIs are SysV/POSIX. |
| 9. | It has the preferred license of Proprietary, APSL and GNU GPL. | It has the preferred license Proprietary. |
| 10. | The non-native APIs supported by its subsystems are Toolbox, Win16 and Win32. | The non-native APIs are not supported by its subsystems. |
| 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 Chrome OS are eCryptfs, NTFS, FAT, FAT16, FAT32, exFAT, ext2, ext3, ext4, HFS+, MTP, ISO 9660 and UDF. |