Apple Announces Enhancements To System Software

New Set of Software Refinements Offers System Improvements for Specific Macintosh Models

CUPERTINO, California--June 7, 1996--Apple Computer, Inc. today announced System 7.5.3 Revision 2, a two-disk set of software refinements that improves the stability, reliability and performance of certain Macintosh and Mac OS-compatible computers using the current system software.

"Revision 2 addresses some customer requests for specific Macintosh models, and is not meant for our entire customer base," said Jim Gable, senior director of system software product marketing at Apple. "Customers who do fit the Revision 2 profile, however, should benefit from better system stability."

Macintosh systems which will benefit from System 7.5.3 Revision 2 include all PowerBook systems using Connectix RAM Doubler; all Macintosh PowerBook 5300 and PowerBook Duo 2300 systems; all PowerBook 200 or 500 Series systems which have been upgraded with the Macintosh PowerBook Processor Card Upgrade Kit with PowerPC (or upgraded with similar third-party products); and all Macintosh 7200, 7500, 7600, 8500 and 9500 systems. In addition, to benefit from Revision 2, these systems must be running System 7.5 Version 7.5.3, or specific versions of System 7.5.2 for PowerBook products.

System 7.5.3 Revision 2 provides several system reliability improvements for customers of these specific Macintosh models. Included in the improvements are:

Price, Availability and System Requirements System 7.5.3 Revision 2 is available today in the U.S. and can be downloaded at the following Internet sites free of charge:,,, The revision is also available on most online services, including America Online, CompuServe, and Applelink. Customers in the United States may also order the update on two floppy disks for $13 by calling 1-800-293-6617, ext. 1198. In Canada, customers may order the update on two floppy disks for $20 by calling 1-800-361-6075, ext. 1198. Localized versions of this release will be available to international customers in many countries within 90 days. Apple also plans to update the Macintosh System 7.5 retail upgrade package in the next 60 days in the U.S., to incorporate the improvements in System 7.5 Version 7.5.3 as well as Revision 2.

System requirements for Revision 2 are System 7.5 Version 7.5.3, or specific releases of version 7.5.2 (identified as Enabler 1.2 or later in the "About This Macintosh" box) which were released in January for our latest PowerBook products.

Apple Computer, Inc., a recognized innovator in the information industry and leader in multimedia technologies, creates powerful solutions based on easy-to-use personal computers, servers, peripherals, software, personal digital assistants and Internet content. Headquartered in Cupertino, California, Apple develops, manufactures, licenses and markets solutions, products, technologies and services for business, education, consumer, entertainment, scientific and engineering and government customers in more than 140 countries.

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