Difference between Windows and IBM i

1. Windows :
Windows is a group of various proprietary graphical operating systems which is provided by Microsoft Incorporation. It is also known as Microsoft Windows. It currently includes Windows NT and Windows IoT as members of its family. Earlier it included Windows 9x, Windows Mobile and Windows Phone which are no longer in use. It is the most used operating system in personal computers. The first version of Windows was launched by Microsoft in 1985. The most recent version of Windows for personal computers is Windows 10.

2. IBM i :
IBM i is an operating system or operating environment which is provided by IBM. It provides an abstract interface to IBM Power Systems. It works through the layers of low level machine interface code or microcode that reside above the Technology Independent Machine Interface and the System Licensed Internal Code or kernel. It enables the IBM Power platform to support a wide variety of business applications and can co-exist alongside other operating systems. It is a closed source operating system. The first version of IBM i was launched in 1988. The latest stable version of IBM i is 7.3.

Difference between Windows and IBM i :

WINDOWS	IBM I
It was developed and is owned by Microsoft Incorporation.	It was developed and is owned by IBM.
It was launched in 1985.	It was launched in 1988.
Current stable version is Windows 10.	Current stable version is 7.3.
Kernel type is Hybrid with modules.	Kernel type is Microkernel and Virtual machine.
It is used for personal computers.	It is not used for personal computers.
It is used in computers of all companies.	It is majorly used in IBM devices.
It charges for original version.	It is bundled with hardware.
Preferred license is Proprietary and Source available.	Preferred license is Proprietary.
Its target system are workstation, personal computers, media center, tablets and embedded systems.	Its target system type are minicomputer and server.