OS Timeline

LEO I

Jan 1, 1951

Name of the OS: LEO I 'Lyons Electronic Office'
Brand: EDSAC / J. Lyons and Co.
Programmers: Oliver Standingford and Raymond Thompson
Price when it was released:

General Motors Operating System

Jan 1, 1955

Name of the OS: GM-NAA I/O
Brans: IBM
Programmer/s: Robert L. Patrick of General Motors Research and Owen Mock of North American Aviation

IBM 7090/94 IBSYS

Sep 16, 1960

Brand: IBM
Programmer/s: Davis, Gordon B.
Price when it was released: 3 million dollars (to the company)

GCOS

Sep 17, 1962

Brand: General Electric
Programmer/s: Honeywell and Groupe Bull

OS/360

Sep 17, 1964

Brand: IBM
Price when it was released: 25 million dollars (to the company)

CAP computer

Sep 17, 1976

Brand: University of Cambridge Computer Laboratory
Programmer/s: M.Wilkes and R.Needham with D.Wheeler

Apple DOS

Sep 18, 1978

Brand: Apple Computer
Programmer/s: Steve Wozniak, Randy Wigginton

Xenix

Sep 18, 1980

Brand: Microsoft
Programmer/s: Microsoft developers

MS DOS

Sep 18, 1981

Brand: Microsoft Corporation
Programmer/s: Tim Paterson

Mac OS

Sep 18, 1984

Brand: Apple computer Inc. (now Apple Inc.)
Programmer/s: Steve Jobs with others

Windows 1.0

Sep 18, 1985

Brand: Microsoft Corporation
Programmer/s: Bill Gates
Price when it was released: $700

Windows 2.0

Sep 18, 1987

Brand: Microsoft
Programmer/s: Bill Gates and Microsoft staff

Mac OS (system 6)

Sep 18, 1988

Brand: Apple Inc.
Programmer/s: Steve Jobs and Apple staff

LynxOS

Sep 18, 1988

Brand: LynuxWorks
Programmer/s: Mitchell Bunnel

Windows 3.0

Sep 18, 1990

Brand: Microsoft
Programmer/s: Microsoft developers

Linux Kernel

Sep 18, 1991

Brand: Linus Torvalds
Programmer/s: Linus Torvalds

Windows 95

Sep 18, 1995

Brand: Microsoft
Programmer/s: Microsoft staff
Price when it was released: $19.95

MAC OS 8

Sep 18, 1997

Brand: Apple Inc.
Programmer/s: Apple developers
Price when it was released: $99

Windows 98

Sep 18, 1998

Brand: Microsoft
Programmer/s: Microsoft developers

Mac OS 9

Sep 18, 1999

Brand: Apple Inc.
Programmers: Apple developers
Price when it was released: $99

Windows 2000

Sep 18, 2000

Brand: Microsoft
Programmer/s: Microsoft developers
Price when it was released: $300 (professional)

Mac OS X v10.0

Sep 18, 2001

Brand: Apple Inc.
Programmer/s: Apple developers
Price when it was released: $129

Windows XP

Sep 18, 2001

Brand: Microsoft
Programmer/s: Microsoft developers
Price when it was released: $60

Mac OS X v10.2

Sep 18, 2002

Brand: Apple Inc.
Programmers: Apple developers

Mac OS X Tiger

Sep 18, 2005

Brand: Apple Inc.
Programmer/s: Apple developers
Price when it was released: $129.95

Windows Vista

Sep 18, 2005

Brand: Microsoft
Programmer/s: Microsoft developers
Price when it was released: $399

Debian

Sep 18, 2007

Brand: Debian Project
Programmer/s: Debian volunteers

Mac OS X Leopard

Sep 18, 2007

Brand: Apple Inc.
Programmer/s: Apple developers
Price when it was released: $200

iOS

Sep 18, 2007

Brand: Apple Inc.
Programmer/s: Apple developers
Price when it was released: $99

Android

Sep 18, 2008

Brand: Google
Programmer/s: Andy Rubin, Rich Miner, Nick Sears and Chris White
Price when it was released: $10,000 (company)

Windows 7

Sep 18, 2009

Brand: Microsoft
Programmer/s: Microsoft developers
Price when it was released: $219.99

Mac OS X Snow Leopard

Sep 18, 2009

Brand: Apple Inc
Programmer/s: Apple developers
Price when it was released: $29

Mac OS X Lion

Sep 18, 2010

Brand: Apple Inc.
Programmer/s: Apple developers
Price when it was released: $69.99

Mac OS X v10.8 "Mountain Lion"

Sep 18, 2012

Brand: Apple Inc.
Programmer/s: Apple developers
Price when it was released: $19.99