OS/2 2.0, Summer ’91 Edition
The superior OS that was eventually killed by the inferior Windows 95. OS&#x2F;2 did a lot right. The integrated Windows-Environment was initially better than native Windows: better process isolation (remember Windows 3.1&#x27;s cooperative multitasking aka &quot;hangs one hangs all&quot;?), more DOS freespace.<p>The next thing I liked and adopted was Windows 2000, the less-sucking NT. We have come a long way since then!