Apple's quest for a next generation operating system

Apple

Apple releases the first Macintosh

01/24/1984

System 1.0 - 4.0

01/24/1984 - 10/01/1987

Projects Red, Pink, Blue, Taligent, Copland & Gershwin all fail

10/01/1987 - 08/01/1996

System 5.0 - System 7.5

10/01/1987 - 09/01/1994

System 7.5 thru Mac OS 8, 9

09/01/1994 - 03/24/2001

Apple turns to NeXT to build Mac OS X

08/01/1996 - 03/24/2001

Mac OS X

03/24/2001 - 10/26/2014

Microsoft

MS-DOS

08/01/1981 - 11/20/1985

Microsoft releases Windows 1.0, the first GUI for the IBM PC

11/20/1985

Windows 1.0 - Windows 3.1x

11/20/1985 - 08/24/1995

Windows NT

07/27/1993 - 02/17/2000

Microsoft releases Windows 95

08/24/1995

Windows 95, 98, ME, 2000

08/24/1995 - 10/25/2001

Microsoft combines Windows NT and 95 into "XP"

10/25/2001

Windows XP, Vista, 7, 8

10/25/2001 - 10/26/2014

Personal Computing Era

First generation

Approx. 01/08/1981 - 01/21/1984

Second generation

01/24/1984 - Approx. 08/24/1995

Third or "Next Generation"

Approx. 08/24/1995 - Approx. 01/01/2015