Mac OS 9.1 is an operating system that was designed and developed by Apple in 2001 alongside Apple’s personal computers. The system has been released on January 9, 2001, and was available for $99 or was preinstalled on currently sold computers.
Mac OS 9.1 was the last major release of Apple’s classic Mac OS. Generally, the Ninth version of the Macintosh operating system contains many improvements including a Software Update engine, Support for multiple users, Open Transport Networking, iTools, Sherlock 2, or full multitasking.
Mac OS 9 has been discontinued in 2001 however, all functions have been moved to Mac OS X. Mac OS 9.1 includes an integrated CD burning support in the Macintosh Finder and added a new Window menu in the Finder for switching between open windows.
On June 18, 2001, this Mac OS has been replaced by a newer version of Mac OS 9.2.
Today Mac OS 9.1 is 22 years old!
Mac OS 9.1 General Information
| Released | January 9, 2001 |
| Original Price | $99 |
| System Requirements | PowerPC processor 32 MB RAM 320 MB of hard disk space |
| Distribution | CD-ROM |
| Order Number | M8081LL/A |
| Versions | 9.1 |
