
CHEMDOODLE 9.0.3 MAC OS
Several older versions of the Mac OS were available for download through links on, including 1.0, 1.1, 2.0, 3.2, and 4.2. And for tips on choosing a version of the Mac OS, read Pre System 6. (Exception: If the hard drive of a is formatted with any version newer than 7.3.1, it will crash instead of waking from sleep mode.) For an interesting overview of Mac OS history, read on MacKiDo. You should have no trouble formatting and writing to high density floppies using a USB floppy drive.ĭrive Prep Whenever possible, Apple branded hard drives should be formatted or updated with or later before installing a new version of the OS. You cannot use a USB floppy drive to create 800K floppy disks they can only be formatted and written to using an Apple 800K or 1.4M HD floppy drive. You will need a 400K or 800K floppy drive to produce single-sided disks for use with the and Apple’s high density floppy drives cannot format single-sided floppies. Mounting disk images or making floppies from them requires Disk Copy (download ).

Making Floppies Software is stuffed and requires an expander, such as (which was traditionally bundled with early Mac web browsers). System 7.1.x as well as 7.6.x and later are not free products and must be purchased.

(Apple does rearrange things, making it more difficult to find things.) All versions of the Mac OS linked here are copyrighted by Apple Computer and free to Macintosh owners. Need a copy of System 6.0.8, 7.0.1, or a newer version of the Classic Mac OS for your vintage Mac? You can dig through and try to find them – or you can download them using the updated links on this page.
