2 ms·
I believe the concept of "soft off" for PCs was only introduced with the ATX standard in 1995, and the accompanying APM/ACPI specifications that were needed to
by userbinator 2y ago
I believe the concept of "soft off" for PCs was only introduced with the ATX standard in 1995, and the accompanying APM/ACPI specifications that were needed to implement it in software:
https://wiki.osdev.org/Shutdown https://wiki.osdev.org/Shutdown
- rzzzt 2y agoIt depends on how soft is soft and if you consider laptops to be PCs. :) At that time some models already came with a "slide once to power on, slide in the same direction again to power off"-style switch and not of the mechanic toggling kind. The APM specification also predates ATX by a few years (1992).