Question: What is the oldest version of microsoft windows?
Answer: Microsoft Windows , version 1.0
Disambiguated annotations:
qaPairs: question: What was the first ever version of Microsoft Windows?
answer: 1.0
question: What was the first version of Windows that was its own operating system?
answer: Windows 95
question: What was the first version of Windows that was a fully 32 bit operating system?
answer: Windows NT 3.1
answer: Windows 1.0