AmigaOS

AmigaOS
	Screenshot of AmigaOS 4.1
Developer	Commodore International, Hyperion Entertainment
Written in	Assembly language, BCPL, C
OS family	Amiga
Working state	Current
Source model	Closed source
Initial release	July 23, 1985
Latest release	4.1 Final Edition Update 2 / January 12, 2021
Platforms	M68K: versions 1.0 through 3.9; PowerPC: versions 4.0 through 4.1
Kernel type	Microkernel
Default; user interface	Graphical (Workbench)
License	Proprietary
Official website	www.amigaos.net

AmigaOS is a family of proprietary native operating systems of the Amiga and AmigaOne personal computers. It was developed first by Commodore International and introduced with the launch of the first Amiga, the Amiga 1000, in 1985. Early versions of AmigaOS required the Motorola 68000 series of 16-bit and 32-bit microprocessors. Later versions, after Commodore's demise, were developed by Haage & Partner (AmigaOS 3.5 and 3.9) and then Hyperion Entertainment (AmigaOS 4.0-4.1). A PowerPC microprocessor is required for the most recent AmigaOS 4-release.

AmigaOS is a single-user operating system based on a preemptive multitasking kernel, called Exec.^[1] It includes an abstraction of the Amiga's hardware, a disk operating system called AmigaDOS, a windowing system API called Intuition, and a desktop environment^[2] and file manager called Workbench.

MorphOS and AROS Research Operating System are modern implementations of the original AmigaOS that are compatible with it.