Both systems had Mac OS 9.0.4 installed on them first.

A few point updates ago, Mac OS 10.6 was also changed to do the same.

Mac OS 8.1 and higher smooth out many of the problems with these computers.

Mac OS 8.5 is not perfect, in terms of usability or performance.

You can still use your old programs from the Mac OS 9 era.

Mac OS 9 also provided a much improved memory implementation and management.

Steve said the Mac OS was still the best thing in the world.

Mac OS 8.5 included a number of performance improvements.

The package of programs, which runs on Mac OS 8.1 and later, costs about $100.

This movie plays just fine in Mac OS 9 on the same machine.

Both systems had Mac OS 9.0.4 installed on them first.

A few point updates ago, Mac OS 10.6 was also changed to do the same.

Mac OS 8.1 and higher smooth out many of the problems with these computers.

Mac OS 8.5 is not perfect, in terms of usability or performance.

You can still use your old programs from the Mac OS 9 era.

Mac OS 9 also provided a much improved memory implementation and management.

Steve said the Mac OS was still the best thing in the world.

Mac OS 8.5 included a number of performance improvements.

The package of programs, which runs on Mac OS 8.1 and later, costs about $100.

This movie plays just fine in Mac OS 9 on the same machine.