Apple Workgroup Server and, later, Macintosh Server, were the names given to selected models of Macintosh

Macintosh

The Macintosh , or Mac, is a series of several lines of personal computers designed, developed, and marketed by Apple Inc. The first Macintosh was introduced by Apple's then-chairman Steve Jobs on January 24, 1984; it was the first commercially successful personal computer to feature a mouse and a...

 computers which were sold by Apple Computer with additional server software and sometimes bigger hard drives. Apart from that, they were mostly identical to computers out of Apple's workstation range. The "Workgroup Server" name was used on the models based on Centris

Macintosh Centris

Macintosh Centris is a line of Macintosh computers, introduced in 1993, that were built around the Motorola 68LC040 and 68040 CPUs. The name was chosen to indicate that the consumer was selecting a Macintosh in the center of Apple's product line: lower performance than the Quadra computers, but...

, Quadra

Macintosh Quadra

The Macintosh Quadra series was Apple Computer's product family of professional high-end Apple Macintosh personal computers built using the Motorola 68040 CPU. The first two models in the Quadra line were introduced in 1991, and the name was used until the Power Mac was introduced in 1994...

 and early Power Macintosh

Power Macintosh

Power Macintosh, later Power Mac, was a line of Apple Macintosh workstation-class personal computers based on various models of PowerPC microprocessors that were developed, marketed, and supported by Apple Inc. from March 1994 until August 2006. The first models were the Power Macintosh 6100,...

 series, while the servers based on the Power Macintosh G3

Power Macintosh G3

The Power Macintosh G3, commonly called "beige G3s" or "platinum G3s" for the color of their cases, was a series of personal computers designed, manufactured, and sold by Apple Computer, Inc. from November 1997 to January 1999...

 and Power Mac G4

Power Mac G4

The Power Mac G4 was a series of personal computers that was designed, manufactured, and sold by Apple between 1999 and 2004. They used the PowerPC G4 series of microprocessors. They were heralded by Apple to be the first personal supercomputers, reaching speeds of 4 to 20 Gigaflops...

 were called "Macintosh Server G3" and "Macintosh Server G4". The first model was the Workgroup Server 95, introduced in March 1993; the last of the series was quietly discontinued in January 2003, after the introduction of the Xserve

Xserve

Xserve was a line of rack unit computers designed by Apple Inc. for use as servers. When the Xserve was introduced in 2002, it was Apple's first designated server hardware design since the Apple Network Server in 1996...

 made them obsolete.

The Workgroup Servers are not to be confused with the Apple Network Server

Apple Network Server

The Apple Network Server was a short-lived line of PowerPC-based server computers manufactured by Apple Computer from February 1996 to April 1997, when it was discontinued due to very poor sales...

s, which were specially designed servers that exclusively ran on AIX

AIX operating system

AIX AIX AIX (Advanced Interactive eXecutive, pronounced "a i ex" is a series of proprietary Unix operating systems developed and sold by IBM for several of its computer platforms...

 and thus do not qualify as Macintosh computers.

Models

Name	Introduced	Discontinued	Based on	Notes
Workgroup Server 95	March 1993	April 1995	Quadra 950	Was sold with A/UX A/UX A/UX was Apple Computer’s implementation of the Unix operating system for some of their Macintosh computers. The later versions of A/UX ran on the Macintosh II, Quadra and Centris series of machines as well as the SE/30. A/UX was first released in 1988, with the final version released in 1995... , but is able to run Mac OS Mac OS Mac OS is a series of graphical user interface-based operating systems developed by Apple Inc. for their Macintosh line of computer systems. The Macintosh user experience is credited with popularizing the graphical user interface...  as well. The differences to the Quadra are a digital tape drive (DAT) and a PDS card containing a fast SCSI connection and a 256k level 2 CPU cache. Mac OS Supported: System 7.0.1 to Mac OS 8.1
Workgroup Server 60	July 1993	October 1994	Centris 610	The Centris 610 was later sold as the "Quadra 610". Mac OS Supported: (68k, System 7.1-Mac OS 8.1) (PPC, System 7.1.2-Mac OS 9.1)
Workgroup Server 80	July 1993	October 1994	Quadra 800
Workgroup Server 6150	April 1994	October 1995	Power Macintosh 6100 Power Macintosh 6100 The Power Macintosh 6100 was Apple Computer's first computer to use the new PowerPC RISC type processor created by IBM and Motorola. It came in the Centris 610's "pizza box" low-profile case, and superseded the Quadra series that used Motorola's 68040 processor, Apple's previous high end...	Speed bumped from 60 to 66 MHz in April 1995. Mac OS Supported: (60 MHz, System 7.1.2-Mac OS 9.1) (66 MHz, System 7.5-Mac OS 9.1)
Workgroup Server 8150	April 1994	February 1996	Power Macintosh 8100 Power Macintosh 8100 The Power Macintosh 8100 is a personal computer that is a part of Apple Computer's Power Macintosh series of Macintosh computers...	Speed bumped from 80 to 110 MHz in April 1995
Workgroup Server 9150 Workgroup Server 9150 The Apple Workgroup Server 9150 is the only Apple Workgroup Server model not based on a desktop Mac. It featured an 80 MHz PowerPC 601 board in a Quadra 950 style case . The internal bay of the 950 case was filled with a tape backup drive. It has 8MB of RAM . It runs System 7.5 to Mac OS 9.1....	April 1994	February 1996	n/a	The only Workgroup Server not directly based on a workstation. It featured an 80 MHz (speed bumped to 120 MHz in April 1995) PowerPC 601 board in a Quadra 950 style case.
Workgroup Server 7250	February 1996	April 1997	Power Macintosh 7200 Power Macintosh 7200 The Power Macintosh 7200 is a personal computer that is a part of Apple Computer's Power Macintosh series of Macintosh computers. It was introduced in August 1995 as a successor to the Power Macintosh 7100, and was discontinued in favor of the Power Macintosh 7300 in February 1997...
Workgroup Server 8550	February 1996	March 1998	Power Macintosh 8500 Power Macintosh 8500 The Power Macintosh 8500 was a high-end Macintosh personal computer designed, manufactured and sold by Apple Computer from 1995 until 1997. Billed as a high-end graphics computer, the Power Macintosh 8500 was also the first Macintosh to ship with a replaceable daughtercard...
Workgroup Server 7350	April 1997	March 1998	Power Macintosh 7300 Power Macintosh 7300 The Power Macintosh 7300 is a personal computer that is a part of Apple Computer's Power Macintosh series of Macintosh computers...
Workgroup Server 9650	April 1997	March 1998	Power Macintosh 9600 Power Macintosh 9600 The Power Macintosh 9600 is a personal computer that is a part of Apple Computer's Power Macintosh series of Macintosh computers...
Macintosh Server G3	March 1998	December 1998	Power Macintosh G3 Power Macintosh G3 The Power Macintosh G3, commonly called "beige G3s" or "platinum G3s" for the color of their cases, was a series of personal computers designed, manufactured, and sold by Apple Computer, Inc. from November 1997 to January 1999...	Based on the "beige" minitower Power Mac G3.
Macintosh Server G3	January 1999	August 1999	Power Macintosh G3 (Blue & White) Power Macintosh G3 (Blue & White) The Power Macintosh G3 series was a series of personal computers designed, manufactured and sold by Apple Computer Inc. as part of their Power Macintosh line...
Macintosh Server G4	September 1999	January 2003	Power Mac G4 Power Mac G4 The Power Mac G4 was a series of personal computers that was designed, manufactured, and sold by Apple between 1999 and 2004. They used the PowerPC G4 series of microprocessors. They were heralded by Apple to be the first personal supercomputers, reaching speeds of 4 to 20 Gigaflops...	Multiple models mirroring the Power Mac G4's history. The first is based on the "Sawtooth" (AGP graphics) Power Mac G4, the last on the initial "Mirrored Drive Doors" PowerMac G4.

External links

• Legacy Servers at Apple Computer's AppleSpec
• Workgroup Servers at EveryMac.com