Macintosh Performa 637CD Macintosh Performa 637CD

Macintosh Performa 637CD Datasheet

In the fast-paced world of technology, it’s easy for the past to get overshadowed by the latest and greatest innovations. However, today we pause to celebrate an important milestone in Apple’s PC history as one of its iconic creations, the Macintosh Performa 637CD, turns 30 years old.

On July 18, 1994, Apple unveiled the Macintosh Performa 637CD, part of the revered Macintosh Performa series of personal computers. Though it was in production for a mere year, from 1994 to 1995, the Performa 637CD’s impact on the industry and its place in Apple’s legacy cannot be underestimated.

One of the reasons the Performa 637CD made such a splash was its impressive hardware specifications, considered top-of-the-line for its time. Powered by a 33 MHz Motorola 68LC040 processor and backed by 8 MB of RAM, it boasted a 350 MB hard drive, a 2x CD-ROM drive, and a 1.44 MB floppy drive. This combination made it a formidable machine, specifically targeted at creative professionals and power users who demanded cutting-edge performance.

But quality comes at a cost, and the Performa 637CD’s starting price of $2,280 placed it in the upper echelon of Apple’s PC lineup. Nevertheless, its powerful hardware justified the expense for those seeking the best in personal computing during that era.

Sadly, the Performa 637CD’s reign was short-lived, as Apple decided to discontinue its production on July 1, 1995, a little over a year after its initial launch. However, its impact persisted long after it vanished from store shelves.

The Macintosh Performa 637CD played a pivotal role in establishing Apple as a major player in the high-end personal computer market. It showcased the company’s innovative spirit and commitment to creating powerful, user-friendly PCs. Even today, its legacy lives on, as seen in the modern Mac computers that continue to redefine the boundaries of personal computing.

The Performa 637CD’s hardware may now be considered outdated, but for those who experienced its prowess, it remains a symbol of Apple’s ingenuity. It was a stepping stone that paved the way for the groundbreaking technologies we now take for granted.

Interestingly, the Performa 637CD closely resembled its sibling, the Performa 636CD, but with a few notable differences. The 637CD came equipped with a slightly smaller hard drive and a 15″ Apple color monitor, while the 636CD sported a 500 MB hard drive but no monitor.

Additionally, the Performa 637CD had variations tailored for different purposes. The educational version of the computer was known as the LC 630 series, while the business variant was dubbed the Quadra 630.

As we commemorate the 30 birthday of the Macintosh Performa 637CD, let us remember its role in shaping the tech landscape. Apple’s dedication to innovation and excellence remains as strong as ever, and we eagerly anticipate future breakthroughs that will build upon the legacy of this iconic machine.

Mac Performa 637CD
Source: worthpoint.com – Mac Performa 637CD

Macintosh Performa 637CD Details

IntroducedJuly 18, 1994
DiscontinuedJuly 1, 1995
Model Identifier98
Model NumberM3076
Order NumberM3598LL/A
Original Price$2,280
Weight19 Ibs.
8.618 KG
Dimensions4.3” H x 12.6” W x 16.5” D
10.92 cm H x 32 cm W x 41.91 cm D

Mac Performa 637CD Tech Specs


ProcessorMotorola 68LC040
Processor Speed33 MHz
Number of Cores1
System Bus33 MHz
Cache8 KB L1

Storage & Media

Storage350 MB
Media1 – 1.44 MB Floppy
1 – 2x CD-ROM (Optional)


Built-in Memory8 MB
Maximum Memory36 MB
Memory Slots1 – 72 pin SIMM
Minimum Speed80 ns
Interleaving SupportNo


Built-in DisplayNone


Graphics CardNone
Graphics Memory1 MB
Display Connection1 – DB-15


Expansion Slots1 – LC PDS
1 – Comm
1 – Video I/O
Hard Drive InterfaceIDE


Modem14.4k (external)
SCSI1 – DB-25
Floppy PortNone
Audio In1 – 3.5-mm analog input jack (8-bit mono)
Audio Out1 – 3.5-mm analog output jack (8-bit stereo)
1 – Built-in speaker
Display1 – DB-15


Original OSSystem Software 7.1.2P
Maximum OSMac OS 8.1
FirmwareMacintosh ROM


Backup Battery4.5 V Alkaline
Maximum Continuous Power45 W
Line VoltageUnknown

Further Reading and References

Disclaimer: The data presented in this article is under continuous development and has been manually collected from various sources based on their availability. The author of this article may revise this dataset as additional research is conducted and reviewed. Please note that the information is provided “as is” and “as available” without express or implied warranties. The author cannot be held responsible for any omissions, inaccuracies, or errors in the published information. Any warranties relating to this information are hereby disclaimed.

Last updated: August 2, 2023