1.iOS：
iOS 是由 Apple Incorporation 提供的移动操作系统。它主要是为 iPhone 和 iPod Touch 等苹果移动设备设计的。它早先被称为 iPhone 操作系统。它是一个基于Darwin(BSD) 操作系统的类Unix 操作系统。它是仅次于 Android 的全球第二大移动操作系统。它主要用 C、C++、Objective-C、汇编语言和 Swift 编写。 iOS 的第一个版本于 2007 年推出。
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。
iOS 和 Chrome 操作系统的区别：
| S.No. | IOS | CHROME OS |
|---|---|---|
| 1. | It was developed by Apple Incorporation. | It was developed by Google LLC. |
| 2. | It was launched in 2007. | It was launched in 2009. |
| 3. | Its target system types are smartphone, music player and tablet computer. | Its target system types are Chromebook, Chromebox, Chromebase and tablets. |
| 4. | Computer architectures supported by iOS are ARMv8-A (iOS 7-present), ARMv7-A (iPhone OS 3-iOS 10) and ARMv6 (iPhone OS 1-iOS 4.2.1). | Computer architectures supported by Chrome OS are ARM, IA-32 and x86-64. |
| 5. | Its kernel type is Hybrid. | Its kernel type is Monolithic with modules. |
| 6. | Its native APIs are Cocoa and BSD-POSIX. | Its native APIs are Linux/POSIX. |
| 7. | It has the preferred license is Proprietary, APSL and GNU GPL. | It has the preferred license of Proprietary. |
| 8. | Its does not have package management. | Its package management is Portage. |
| 9. | It is specifically designed for iphones and ipads. | It is specifically designed for Chromebook. |
| 10. | File systems supported by iOS are HFS+ and APFS. | File systems supported by Chrome OS are eCryptfs, NTFS, FAT, FAT16, FAT32, exFAT, ext2, ext3, ext4, HFS+, MTP, ISO 9660 and UDF. |