System Software 1.1 System Software 1.1

System Software 1.0 & 1.1 Release Details

Apple’s System Software 1.0 and 1.1 was game-changer when it was first released in 1986. Developed alongside Apple’s Macintosh computers, the operating system was designed to improve the user experience and fix bugs that had been causing data loss and system crashes.

On February 10, 1986, Apple released System Software 1.0, which featured a host of bug fixes and updates to the Calculator and Chooser apps. And just a couple of months later, on April 14, 1986, the company released a compiled version of “Guided Tour 512Ke” for the new Macintosh 512Ke, complete with an updated version of System 3.1.1.

ReleasedFebruary 10, 1986 (1.0)
April 14, 1986 (1.0 for Macintosh 512Ke)
June 2, 1986 (1.1)
System RequirementsMotorola 68000 processor or later
128 KB of RAM
Distribution400 KB floppy disk
VersionsSystem Software 1.0 – System 3.1 / System 3.1.1, Finder 5.2
System Software 1.1 – System 3.2, Finder 5.3
Source: podstawczynski.com – Macintosh 512Ke

But the updates didn’t stop there. On June 2, 1986, Apple released System Software 1.1, which featured even more improvements and bug fixes. This version of Macintosh System Software was eventually replaced by System Software 2.0.

It’s hard to believe that System Software 1.0 and 1.1 is now 38 years old. But even though it’s been around for decades, the operating system continues to be remembered as a groundbreaking release that set the standard for future Apple software.

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: April 8, 2023