History of OS

HP-UX

Sep 13, 1983

BRAND: HP
CREATOR: Hewlett-Packard
PRICE: $1050

Mac OS

Sep 13, 1984

BRAND: Apple
PRICE: $20
CREATOR: pple Inc.

IBM i

Sep 13, 1988

BRAND; IBM
CREATOR: IBM
PRICE: $325

FreeBSD

Sep 13, 1993

BRAND: BSD
PRICE: Free
CREATOR: The FreeBSD Project

Plan 9

Sep 13, 1993

BRAND: Lucent Technologies Inc.
CREATOR: Bell Labs
PRICE: $8.99

EPOC32

Sep 13, 1996

BRAND: no bran
PRICE: no price
CREATOR: Psion PLC

OS X Server

Sep 13, 2001

BRAND: Apple
PRICE: No price
CREATOR:Apple Inc.

RISC OS

Sep 13, 2004

BRAND: RISC
CREATOR: RISCOS Ltd, Pace plc
PRICE: no price

PC-BSD

Sep 13, 2006

BRAND: BSD
CREATOR: C-BSD Software

PRICE: $36.04

Android

Sep 13, 2008

BRAND: Linux
CREATOR: Android, Inc., Google
PRICE: No price