Macintosh Quadra

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A Macintosh Quadra 840AV with accompanying keyboard, mouse, display, and speakers Quadra 840AV & Macintosh 16-inch Color Display & AppleDesign Powered Speakers & Apple Extended Keyboard II & Apple Desktop Bus Mouse II.jpg
A Macintosh Quadra 840AV with accompanying keyboard, mouse, display, and speakers

The Macintosh Quadra is a family of personal computers designed, manufactured and sold by Apple Computer, Inc. from October 1991 to October 1995. The Quadra, named for the Motorola 68040 central processing unit, replaced the Macintosh II family as the high-end Macintosh model.

Contents

The first models were the Quadra 700 and Quadra 900, both introduced in October 1991. The Quadra 800, 840AV and 605 were added through 1993. The Macintosh Centris line was merged with the Quadra in October 1993, adding the 610, 650 and 660AV to the range. After the introduction of the Power Macintosh line in early 1994, Apple continued to produce and sell new Quadra models; the 950 continued to be sold until October 1995.

The product manager for the Quadra family was Frank Casanova who was also the Product Manager for the Macintosh IIfx.

Models

Quadra towers
Macintosh Quadra 700.png
Macintosh Quadra 700
Macintosh Quadra 900.jpg
Macintosh Quadra 900
Quadra 950 hero.jpg
Quadra 950 / Workgroup Server 95
Quadra "pizza boxes"
Macintosh Quadra 610.jpg
Macintosh Quadra 610
Macintosh Centris 660AV.jpg
Macintosh Quadra 660AV
Macintosh quadra 605 warm.jpg
Macintosh Quadra 605
Quadra midrange
Macintosh Quadra 650.jpg
Quadra / Centris 650
Macintosh LC 630.jpg
Quadra / LC / Performa 630
Quadra later towers
Apple mac quadra 800.jpg
Quadra 800 / Workgroup Server 80
Macintosh Quadra 840AV.jpg
Quadra 840AV

The first computers bearing the Macintosh Quadra name were the Quadra 700 and Quadra 900, both introduced in 1991 with a central processing unit (CPU) speed of 25 MHz. The 700 was a compact model using the same case dimensions as the Macintosh IIci, with a Processor Direct Slot (PDS) expansion slot, while the latter was a newly designed tower case with five NuBus expansion slots and one PDS slot. The 900 was replaced in 1992 with the Quadra 950, with a CPU speed of 33 MHz. The line was joined by a number of "800-series" machines in a new minitower case design, starting with the Quadra 800, and the "600-series" pizza box desktop cases with the Quadra 610.

In 1993, the Quadra 840AV and 660AV were introduced at 40 MHz and 25 MHz respectively. They included an AT&T 3210 Digital signal processor and S-Video and composite video input/output ports, as well as CD-quality microphone and audio output ports. The AV models also introduced PlainTalk, consisting of the text-to-speech software MacinTalk Pro and speech control (although not dictation). However, all of these features were poorly supported in software and a DSP was not installed in later AV Macs, which were based on the more powerful PowerPC 601 - a CPU powerful enough to handle the coprocessor's duties on its own.

Branding

Apple hired marketing firm Lexicon Branding to come up with the name. Lexicon chose the name Quadra hoping to appeal to engineers by evoking technical terms like quadrant and quadriceps. [1]

The Quadra name was also used for the successors to the Centris models that briefly existed during 1993: The 610, the 650 and the 660AV. Centris was a "mid-range" line of systems between the Quadra on the high end and the LC on the low end, but it was later decided that there were too many product lines and the name was dropped. Some machines of this era including the Quadra 605 were also sold as Performas.

The last use of the name was for the Quadra 630, which was a variation of the LC 630 using a "full" Motorola 68040 instead of the LC's 68LC040, and introduced together with it in 1994. The 630 was the first Mac to use an IDE based drive bus for the internal hard disk drive, whereas all earlier models had used SCSI.

The first three Apple Workgroup Server models, the WGS 60, the WGS 80 and the WGS 95 (mostly called "AWS 95" for "Apple Workgroup Server") were based on the Centris 610, the Quadra 800 and the Quadra 950, respectively.

Processor

The transition to the Motorola 68040 was not as smooth as the previous transitions to the Motorola 68020 or Motorola 68030. Due to the Motorola 68040's split instruction and data caches, the Quadra had compatibility problems with self-modifying code (including relocating code, which was common under the Macintosh memory model). Apple partially fixed this by having the basic Mac OS memory copy call flush the caches. This solved the vast majority of stability problems, but negated much of the Motorola 68040's performance improvements. Apple also introduced a variant of the memory copy call that did not flush the cache. [2] The new trap was defined in such a way that calling it on an older version of Mac OS would simply call the previous memory copy routine. The net effect of this was that many complex applications were initially slow or prone to crashing on the 68040, although developers quickly adapted to the new architecture by relying on Apple's memory copy routines rather than their own (or flushing the cache) and using the memory copy that did not flush the cache when appropriate (most of the time).

Specifications

According to Apple, all of these models are obsolete. [a] [3]

Model Quadra 700 [4] [5] Quadra 900 [6] [7] Quadra 950 [8] [9] Quadra 800 [10] [11] Quadra 650 [12] [13]
(Centris 650) 		Quadra 610 [14] [15]
(Centris 610) 		Quadra 660AV [16] [17]
(Centris 660AV) 		Quadra 840AV [18] [19]
Quadra 605 [20] [21]
(LC 475, Performa 475, Performa 476) 		Quadra / LC / Performa 630 [22] [23]
TimetablePredecessor IIci IIfx Quadra 900 Quadra 700 IIvi/vx IIsi None Quadra 950 & Quadra 800 LC III Quadra 610
ReleasedOctober 21, 1991 May 18, 1992February 9, 1993 February 10, 1993July 29, 1993 October 21, 1993 July 15, 1994
Discontinued March 15, 1993 May 18, 1992 October 14, 1995 March 14, 1994 September 12, 1994 July 18, 1994 September 12, 1994 July 18, 1994 October 17, 1994 October 5, 1995
Successor Centris 650 & Quadra 800 Quadra 950 Power Macintosh 9500 Quadra 840AV & Power Macintosh 8100 Quadra 630 & Power Macintosh 6100/60AV Quadra 630 & Quadra 660AV & Power Macintosh 6100 Power Macintosh 8100/80AV Power Macintosh 7100/66AV & Power Macintosh 8100/80AV LC 520 Power Macintosh 6300
ModelMarketing model no. M5921 M4210 M6710 M1287 M2107 M2372 M2691 M9025 M1821 M3491
Model number M5920 M4200 M4300 M1206 M2118 M2113 M9040 M9020 M1476 M3076
Gestalt ID 22 20 26 35 36 53 60 78 89 98
Enclosure Macintosh IIcx tower/desktopMac Quadra 900 towerMac Quadra 800 towerMac IIvx desktopMac Centris 610 desktopMac Quadra 800 towerMac Quadra 605 desktopMac Quadra 630 desktop
Performance Processor 25 MHz
Motorola 68040 [24] 		25 MHz
Motorola 68040 		33 MHz
Motorola 68040
(25 MHz Motorola 68LC040 or 68040 for Centris 650)		25 MHz
Motorola 68040
(20 MHz Motorola 68LC040 for Centris 610)		40 MHz
Motorola 68040 		25 MHz
Motorola 68LC040 		33 MHz
Motorola 68040
(Motorola 68LC040 for LC and Performa)
Memory 4 MB (expandable to 68 MB)4 MB (expandable to 256 MB)8 MB (expandable to 256 MB)8 MB (expandable to 136 MB)4 MB (expandable to 132 MB)
or 8 MB (expandable to 136 MB)		4 MB (expandable to 68 MB)8 MB (expandable to 68 MB)8 or 16 MB (expandable to 128 MB)4 or 8 MB (expandable to 36 MB)4 MB (expandable to 36 MB)
4 x 80 ns 30-pin SIMM16 x 80 ns 30-pin SIMM 4 x 60 ns 72-pin SIMM 1 x 80 ns 72-pin SIMM 2 x 80 ns 72-pin SIMM 2 x 70 ns 72-pin SIMM 4 x 60 ns 72-pin SIMM1 x 80 ns 72-pin SIMM
Video card 512 KB – 2 MB
6 x 100 ns VRAM SIMM slots 		1 MB – 2 MB
6 x 100 ns VRAM SIMM slots 		1 MB – 2MB
4 x 80 ns VRAM SIMM slots		512 KB – 1MB
2 x 80 ns VRAM SIMM slots 		512 KB – 1MB
2 x 100 ns VRAM SIMM slots 		1 MB
1 x 80 ns VRAM SIMM slot 		1 MB – 2 MB
4 x 80 ns VRAM SIMM slots 		512 KB – 1 MB
2 x 80 ns VRAM SIMM slots 		1 MB
1 x 60 ns VRAM SIMM slot
Storage Hard drive 0, 80, 160 or 400 MB (SCSI) 0, 160 or 400 MB (SCSI) 230, 400 MB, or 1 GB (SCSI)230 or 500 MB (SCSI) 160 or 230 MB (SCSI) 230 or 500 MB (SCSI) 230, 500 MB, or 1 GB (SCSI) 80 or 160 MB (SCSI) 250 MB (IDE)
Optical driveNoneNone
(Optional 2x CD-ROM)		None None
(Optional 2x CD-ROM)
Ports2 x ADB
2 x DIN-8 RS-422
SCSI DB-25
Operating systemMinimum System 7.0.1
A/UX 		System 7.0.1 System 7.1 System 7.1.2P
Maximum Mac OS 8.1
Mac OS 9.1 (with PowerPC upgrade)

Timelines

Timeline of Macintosh Centris, LC, Performa, and Quadra models, colored by CPU type
Macintosh Performa 6214Macintosh Performa 6210Macintosh Performa 6205Macintosh Performa 6230Macintosh Performa 6220Macintosh Quadra 840AVMacintosh Quadra 650Macintosh Quadra 610Macintosh Quadra 605Macintosh Quadra 660AVMacintosh Quadra 800Macintosh Centris 650Macintosh Centris 610Macintosh Quadra 950Macintosh Quadra 630Macintosh Quadra 900Macintosh Quadra 700Macintosh Performa 6420Macintosh Performa 6410Macintosh Performa 5440Macintosh Performa 5430Macintosh Performa 5260Macintosh Performa 6360Macintosh Performa 5260Macintosh Performa 6400Macintosh Performa 6400Macintosh Performa 5400Macintosh Performa 5400Macintosh Performa 6260Macintosh Performa 5400Macintosh Performa 5420Macintosh Performa 5410Macintosh Performa 5270Macintosh Performa 5260Macintosh Performa 6320Macintosh Performa 6310Macintosh Performa 6300Macintosh Performa 6290Macintosh Performa 5320Macintosh Performa 5300Macintosh Performa 6218Macintosh Performa 6216Macintosh Performa 6200Macintosh Performa 6116Macintosh Performa 5220Macintosh Performa 5215Macintosh Performa 5210Macintosh Performa 5200Macintosh Performa 640CDMacintosh Performa 580CDMacintosh Performa 588CDMacintosh Performa 638Macintosh Performa 637Macintosh Performa 636Macintosh Performa 635Macintosh Performa 631Macintosh Performa 630Macintosh Performa 578Macintosh Performa 577Macintosh Performa 575Macintosh Performa 476Macintosh Performa 475Macintosh Performa 560Macintosh Performa 550Macintosh Performa 275Macintosh Performa 6118Macintosh Performa 6117Macintosh Performa 6115Macintosh Performa 6112Macintosh Performa 6110Macintosh Performa 467Macintosh Performa 466Macintosh Performa 460Macintosh Performa 410Macintosh Performa 520Macintosh Performa 450Macintosh Performa 430Macintosh Performa 405Macintosh Performa 250Macintosh Performa 600Macintosh Performa 400Macintosh Performa 200Power Macintosh 5300 LCMacintosh LC 575Macintosh TVMacintosh LC IIIMacintosh LC 550Macintosh LC 580Macintosh LC 520Macintosh LC 630Macintosh LC 475Power Macintosh 5200 LCMacintosh LC IIIMacintosh LC IIMacintosh LCMacintosh Quadra

See also: List of Mac models

See also

Notes

  1. ↑ Apple products that have been discontinued for 7 years and no longer receive hardware support nor spare parts

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<span class="mw-page-title-main">Macintosh IIci</span> Personal computer by Apple, Inc.

The Macintosh IIci is a personal computer designed, manufactured, and sold by Apple Computer, Inc. from September 1989 to February 1993. It is a more powerful version of the Macintosh IIcx, released earlier that year, and shares the same compact case design. With three NuBus expansion slots and a Processor Direct Slot, the IIci also improved upon the IIcx's 16 MHz Motorola 68030 CPU and 68882 FPU, replacing them with 25 MHz versions of these chips.

<span class="mw-page-title-main">Macintosh II family</span> Second generation of the Apple Macintosh computer line

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<span class="mw-page-title-main">Macintosh Centris</span> Line of computers by Apple, Inc.

Macintosh Centris is a family of personal computers designed, manufactured and sold by Apple Computer, Inc. in 1992 and 1993. They were introduced as a replacement for the six-year-old Macintosh II family of computers; the name was chosen to indicate that the consumer was selecting a Macintosh in the center of Apple's product line. Centris machines were the first to offer Motorola 68040 CPUs at a price point around US$2,500, making them significantly less expensive than Quadra computers, but also offering higher performance than the Macintosh LC computers of the time.

<span class="mw-page-title-main">Processor Direct Slot</span>

A processor direct slot (PDS) is a slot incorporated into many older Macintosh models that allowed direct access to the signal pins of a CPU, similar to the functionality of a local bus in PCs. This would result in much higher speeds than having to go through a bus layer, such as NuBus, which typically ran at a slower 10 MHz speed.

<span class="mw-page-title-main">Macintosh IIvx</span> Personal computer by Apple

The Macintosh IIvx is a personal computer designed, manufactured and sold by Apple Computer from October 1992 to October 1993. It is the last of the Macintosh II family of Macintosh computers. The IIvx was introduced at the same time as the Macintosh IIvi, with both models using the same metal case design as the earlier Performa 600 and Performa 600CD. Like the Performa 600CD, the IIvx could be equipped with an internal double-speed CD-ROM drive.

<span class="mw-page-title-main">Macintosh IIvi</span> Personal computer by Apple

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<span class="mw-page-title-main">Macintosh Quadra 950</span> Personal computer by Apple Computer

The Macintosh Quadra 950 is a personal computer designed, manufactured and sold by Apple Computer from March 1992 to October 1995. It replaced the Quadra 900 that was introduced several months earlier, increasing the CPU clock rate of its 68040 CPU from 25 MHz to 33 MHz, and improving the graphics support. The two computers were otherwise identical, including the price. With a Macintosh Processor Upgrade Card installed, this computer is known as the Power Macintosh 950.

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The Power Macintosh 6100 is a personal computer designed, manufactured and sold by Apple Computer from March 1994 to March 1996. It is the first computer from Apple to use the new PowerPC processor created by IBM and Motorola. The low-profile ("pizza-box") case was inherited from the Centris/Quadra 610 and 660AV models, and replaced the Macintosh Quadra series that used the Motorola 68040 processor, Apple's previous high-end workstation line.

<span class="mw-page-title-main">Macintosh Quadra 700</span> Personal computer by Apple Computer

The Macintosh Quadra 700 is a personal computer designed, manufactured and sold by Apple Computer from October 1991 to March 1993. It was introduced alongside the Quadra 900 as the first computers in the Quadra series, using Motorola 68040 processor in order to compete with IBM-compatible PCs powered by the Intel i486DX. The Quadra 700 is also the first computer from Apple to be housed in a mini-tower form factor, which in 1991 was becoming a popular alternative to standard desktop-on-monitor cases that were common through the 1980s.

<span class="mw-page-title-main">Macintosh Quadra 605</span> Personal computer by Apple Computer

The Macintosh Quadra 605 is a personal computer designed, manufactured, and sold by Apple Computer from October 1993 to July 1996. The model names reflect a decision made at Apple in 1993 to follow an emerging industry trend of naming product families for their target customers – Quadra for business, LC for education, and Performa for home. Accordingly, the Performa 475 and 476 was sold in department stores and electronics stores such as Circuit City, whereas the Quadra was purchased through an authorized Apple reseller.

<span class="mw-page-title-main">Macintosh Quadra 900</span> Personal computer by Apple Computer

The Macintosh Quadra 900 is a personal computer designed, manufactured, and sold by Apple Computer from October 1991 to May 1992. It was introduced alongside the Quadra 700 as the first computers in the Quadra family of Macintosh computers using the Motorola 68040 processor. It is also the first computer from Apple to be housed in an 18.6 inch tall mid-tower form factor, which by 1991 had gained momentum with PC manufacturers as a suitable design for departmental servers.

<span class="mw-page-title-main">Macintosh Processor Upgrade Card</span> CPU upgrade card

The generically named Macintosh Processor Upgrade Card is a central processing unit upgrade card sold by Apple Computer, designed for many Motorola 68040-powered Macintosh LC, Quadra and Performa models. The card contains a PowerPC 601 CPU and plugs into the 68040 CPU socket of the upgraded machine. The Processor upgrade card required the original CPU be plugged back into the card itself, and gave the machine the ability to run in its original 68040 configuration, or through the use of a software configuration utility allowed booting as a PowerPC 601 computer running at twice the original speed in MHz with 32 KB of L1 Cache, 256 KB of L2 Cache and a PowerPC Floating Point Unit available to software. The Macintosh Processor Upgrade requires and shipped with System 7.5.

<span class="mw-page-title-main">Macintosh Quadra 800</span> Personal computer by Apple, Inc.

The Macintosh Quadra 800 is a personal computer that is a part of Apple Computer's Quadra series of Macintosh computers.

<span class="mw-page-title-main">Macintosh Quadra 840AV</span> Personal computer by Apple Computer

The Macintosh Quadra 840AV is a personal computer designed, manufactured, and sold by Apple Computer from July 1993 to July 1994. It was introduced alongside the Centris 660AV, where "AV" signifies audiovisual capabilities, such as video input and output, telecommunications, speech recognition, and enhanced audio. The 840AV has the same mini-tower form factor as the Quadra 800, with a faster Motorola 68040 processor.

<span class="mw-page-title-main">Macintosh Quadra 660AV</span> Personal computer by Apple Computer

The Macintosh Quadra 660AV, originally sold as the Macintosh Centris 660AV, is a personal computer designed, manufactured and sold by Apple Computer from July 1993 to September 1994. It was introduced alongside the Quadra 840AV; the "AV" after both model numbers signifies video input and output capabilities and enhanced audio.

<span class="mw-page-title-main">Macintosh Quadra 630</span> Personal computer by Apple, Inc.

The Macintosh Quadra 630 is a personal computer designed, manufactured and sold by Apple Computer from July 1994 to March 1996. It was introduced as the replacement for the Quadra 610, and was the least-expensive computer in the Macintosh lineup with prices starting at $1,199 USD.

<span class="mw-page-title-main">Macintosh Quadra 610</span> Personal computer by Apple Computer

The Macintosh Quadra 610, originally sold as the Macintosh Centris 610, is a personal computer designed, manufactured and sold by Apple Computer from February 1993 to July 1994. The Centris 610 was introduced alongside the larger Centris 650 as the replacement for the Macintosh IIsi, and it was intended as the start of the new midrange Centris line of computers. Later in 1993, Apple decided to follow an emerging industry trend of naming product families for their target customers – Quadra for business, LC for education, and Performa for home – and folded the Centris 610 into the Quadra family.

<span class="mw-page-title-main">Macintosh Quadra 650</span> Personal computer by Apple Computer

The Macintosh Quadra 650, originally sold as the Macintosh Centris 650, is a personal computer designed, manufactured and sold by Apple Computer from February 1993 to September 1994. The Centris 650 was introduced alongside the smaller Centris 610 as the replacement for the Macintosh IIci and Quadra 700, and it was intended as the start of the new midrange Centris line of computers. Later in 1993, Apple decided to follow an emerging industry trend of naming product families for their target customers – Quadra for business, LC for education, and Performa for home – and folded the Centris 650 into the Quadra family.

References

  1. ↑ Beckett, Jamie (23 Oct 1992). "Finding names in unusual places". San Francisco Chronicle .
  2. ↑ "Apple Developer Connection - BlockMove 11". Archived from the original on September 11, 2004.
  3. ↑ "Obtaining service for your Apple product after an expired warranty". support.apple.com. March 20, 2023. Retrieved March 23, 2023.
  4. ↑ "Macintosh Quadra 700 Specs: EveryMac.com". everymac.com. Archived from the original on 2021-10-31. Retrieved 2022-06-19.
  5. ↑ "Quadra 700 | Low End Mac". lowendmac.com. Archived from the original on 2022-06-20. Retrieved 2022-06-20.
  6. ↑ "Macintosh Quadra 900 Specs: EveryMac.com". everymac.com. Archived from the original on 2022-06-20. Retrieved 2022-06-20.
  7. ↑ "Quadra 900 | Low End Mac". lowendmac.com. Archived from the original on 2022-06-20. Retrieved 2022-06-20.
  8. ↑ "Macintosh Quadra 950 Specs: EveryMac.com". everymac.com. Archived from the original on 2022-06-19. Retrieved 2022-06-19.
  9. ↑ "Quadra 950 | Low End Mac". lowendmac.com. Archived from the original on 2022-06-20. Retrieved 2022-06-20.
  10. ↑ "Macintosh Quadra 800 Specs: EveryMac.com". everymac.com. Archived from the original on 2022-06-19. Retrieved 2022-06-19.
  11. ↑ "Quadra 800 | Low End Mac". lowendmac.com. Archived from the original on 2022-06-20. Retrieved 2022-06-20.
  12. ↑ "Macintosh Quadra 650 Specs: EveryMac.com". everymac.com. Archived from the original on 2022-06-20. Retrieved 2022-06-20.
  13. ↑ "Quadra 650 | Low End Mac". lowendmac.com. Archived from the original on 2022-06-20. Retrieved 2022-06-20.
  14. ↑ "Macintosh Quadra 610 (PC) Specs: EveryMac.com". everymac.com. Archived from the original on 2022-06-20. Retrieved 2022-06-20.
  15. ↑ "Quadra 610 | Low End Mac". lowendmac.com. Archived from the original on 2022-06-20. Retrieved 2022-06-20.
  16. ↑ "Macintosh Quadra 660AV Specs: EveryMac.com". everymac.com. Archived from the original on 2021-08-22. Retrieved 2022-06-20.
  17. ↑ "Centris 660av (Quadra 660av) | Low End Mac". lowendmac.com. Archived from the original on 2022-06-20. Retrieved 2022-06-20.
  18. ↑ "Macintosh Quadra 840AV Specs: EveryMac.com". everymac.com. Archived from the original on 2022-06-19. Retrieved 2022-06-19.
  19. ↑ "Quadra 840av | Low End Mac". lowendmac.com. Archived from the original on 2022-06-20. Retrieved 2022-06-20.
  20. ↑ "Macintosh Quadra 605 Specs: EveryMac.com". everymac.com. Archived from the original on 2022-06-20. Retrieved 2022-06-20.
  21. ↑ "Quadra 605 | Low End Mac". lowendmac.com. Archived from the original on 2021-11-04. Retrieved 2022-06-20.
  22. ↑ "Macintosh Quadra 630 Specs: EveryMac.com". everymac.com. Archived from the original on 2022-06-19. Retrieved 2022-06-19.
  23. ↑ "Quadra 630 | Low End Mac". lowendmac.com. Archived from the original on 2022-06-20. Retrieved 2022-06-20.
  24. ↑ "Overclocking the Mac Quadra Series - Quadra 700". September 16, 2014. Archived from the original on October 26, 2021. Retrieved June 19, 2022.
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