Mac OS X HISTORY

Mac OS X's history is actually Mac OS X's history is actually more closely tied to Steven P. Jobsmore closely tied to Steven P. Jobs ((May 31, 1985) He was demoted May 31, 1985) He was demoted

from his executive position in from his executive position in Apple Inc. Apple Inc.

Job resigned on September 13, Job resigned on September 13, 19851985

He formed NeXT Inc.-Steve He formed NeXT Inc.-Steve Jobs' new company (1985- Dec. Jobs' new company (1985- Dec. 20, 1996)20, 1996)

NeXT Inc. in the BusinessNeXT Inc. in the Business Steve Jobs met Paul Berg at an event Steve Jobs met Paul Berg at an event

held in Silicon Valley. held in Silicon Valley.

Berg complained to Jobs about the of Berg complained to Jobs about the of expense in teaching students about expense in teaching students about recombinant DNA from textbooks recombinant DNA from textbooks instead of in the wet lab. instead of in the wet lab.

Berg explained to Jobs that he needed Berg explained to Jobs that he needed Apple to create something similar to a Apple to create something similar to a 3M workstation 3M workstation

This idea led Jobs to starting his own This idea led Jobs to starting his own computer company immediately after computer company immediately after resigning from Apple.resigning from Apple.

next is NeXTnext is NeXT Jobs started Next with his fellow Apple Jobs started Next with his fellow Apple

employees Bud Tribble, George Crow, employees Bud Tribble, George Crow, Rich Page, and Susan Barnes Rich Page, and Susan Barnes

NeXTSTEP was intended to be a highly NeXTSTEP was intended to be a highly advanced object-oriented advanced object-oriented programming environment and user programming environment and user interface.interface.

plans for the NeXT computer were to plans for the NeXT computer were to purchase an already available OS to purchase an already available OS to meet NeXT's demanding specifications. meet NeXT's demanding specifications.

TIME OF DEVELOPINGTIME OF DEVELOPING

Jobs went to Carnegie Mellon University Jobs went to Carnegie Mellon University and recruited Avie Tevanian, to lead and recruited Avie Tevanian, to lead NeXT's team of software development.NeXT's team of software development.

NeXT began development of their NeXT began development of their operating system using Objective-C.operating system using Objective-C.

Jobs unveiled the first NeXT computer Jobs unveiled the first NeXT computer that was running NeXTSTEP 0.8 on that was running NeXTSTEP 0.8 on October 12, 1988 in San Francisco October 12, 1988 in San Francisco (NeXTSTEP was based on Mach2.5and (NeXTSTEP was based on Mach2.5and 4.3BSD )4.3BSD )

NeXT Inc. NeXT Software NeXT Inc. NeXT Software Inc.Inc. NeXT's failed as a hardware company in NeXT's failed as a hardware company in

the late 80's and early 90's.the late 80's and early 90's.

-it began porting the NeXTSTEP OS to -it began porting the NeXTSTEP OS to run on Intel systems (1992).run on Intel systems (1992).

-NeXT soon after dropped their -NeXT soon after dropped their hardware business altogether and re-hardware business altogether and re-named the company NeXT Software, named the company NeXT Software, Inc .Inc .

Due to the flexible nature of the NeXT Due to the flexible nature of the NeXT OS it became very popular.OS it became very popular.

NeXTSTEP OpenStepNeXTSTEP OpenStep

NeXT teamed up with Sun NeXT teamed up with Sun Microsystems (Next Step's Microsystems (Next Step's development continued under development continued under the name OpenStep )the name OpenStep )

- OpenStep was basically - OpenStep was basically NeXTSTEP without the Mach NeXTSTEP without the Mach Unix kernel.Unix kernel.

NextSTEP MAC OS XNextSTEP MAC OS X

(December 20, 1996) Apple (December 20, 1996) Apple purchased NeXT Software, purchased NeXT Software, Inc. for $429 million.Inc. for $429 million.

NeXTSTEP became Apple's NeXTSTEP became Apple's

next operating system which next operating system which we all know today as Mac OS we all know today as Mac OS X.X.

BRIEF BRIEF BRIEF HISTORYBRIEF BRIEF BRIEF HISTORY Job was demoted from Apple Inc.Job was demoted from Apple Inc. Job resignedJob resigned Job open new company (Next Inc.)Job open new company (Next Inc.) Create NeXTSTEP OSCreate NeXTSTEP OS NeXTSTEP Inc. became NeXTSTEP Software NeXTSTEP Inc. became NeXTSTEP Software

Inc.Inc. NeXTSTEP OS become OpenSTEP as the Sun NeXTSTEP OS become OpenSTEP as the Sun

Microsystems teamed upMicrosystems teamed up Apple purchased NeXT Software Inc.Apple purchased NeXT Software Inc. NeXTSTEP became Apple's next operating NeXTSTEP became Apple's next operating

system which we all know today as Mac OS Xsystem which we all know today as Mac OS X