System 6

System 6

Version of the classic Mac OS operating system
System 6.0.8
Developer	Apple Computer
OS family	Macintosh
Source model	Closed source
Released to manufacturing	April 1988; 36 years ago (1988-04)
Latest release	6.0.8 / May 1991; 33 years ago (1991-05)[1]
Kernel type	Monolithic
License	Proprietary
Preceded by	System 5
Succeeded by	System 7
Support status
Historical, unsupported

Part of a series on
Classic Mac OS
Versions System 1 System 2, 3, and 4 System 5 System 6 System 7 Mac OS 7 Mac OS 8 Mac OS 9
Applications Calculator Chooser Drive Setup DVD Player Finder Graphing Calculator Keychain Access PictureViewer PowerTalk QuickTime Player Network Browser Scrapbook Sherlock Software Update Stickies System Information SimpleText
Developer HyperCard MacsBug Macintosh Programmer's Workshop ResEdit
Technology Alias Appearance Manager Apple menu At Ease Balloon help Bomb error Command key (⌘) Control Panel Control Strip Creator code Dogcow Extensions Hierarchical File System HFS Plus Keychain Labels Macintosh File System Macintosh Toolbox Managers MultiFinder Option key (⌥) OSType PICT QuickDraw QuickTime Resource fork Sosumi sound Startup sequence System folder System suitcase Type code WorldScript
Related Memory management Old World ROM New World ROM Software
v t e

System 6 (or System Software 6) is the sixth major release of the classic Mac OS operating system for Macintosh computers, made by Apple Computer. It was released in 1988. It is a monolithic operating system, with cooperative multitasking based on an improved MultiFinder. The boxed version cost US$49 (equivalent to about $130 in 2023), and it was included with all new Macintosh computers until 1991, when it was succeeded by System 7.^[2]