| It was developed and is owned by Microsoft Incorporation. | It was developed and is owned by Apple Incorporation. |
| It was launched in 1985. | It was launched in 2007. |
| Current stable version is Windows 10. | Current stable version is 13.1. |
| It is for workstation, personal computers, media center, tablets and embedded systems. | Its target system type are smartphone, music player and tablet computer. |
| Computer architectures supported by Windows are IA-32, x86-64, IA-64, ARM, Alpha, MIPS and PowerPC. | Computer architectures supported are ARMv8-A (iOS 7-present), ARMv7-A (iPhone OS 3-iOS 10) and ARMv6 (iPhone OS 1-iOS 4.2.1). |
| Kernel type is Hybrid with modules. | Kernel type is Hybrid. |
| The native APIs are Win32 and NT API. | The native APIs are Cocoa and BSD-POSIX. |
| Preferred license is Proprietary and Source available. | Preferred license is Proprietary, APSL and GNU GPL. |
| Update management is Windows Update. | Update management is Software Update. |
| It charges for original version. | It is free of cost. |
| File systems supported are NTFS, FAT, ISO 9660, UDF, HFS+, FATX and HFS. | File systems supported are HFS+ and APFS. |
| Windows uses a custom-made Kernel which is named Microsoft’s NT Kernel. | Apple’s Darwin is used for iOS systems. |