Table: comparison of microsoft windows versions
Question: Which version of Windows was the first to support 64-bit architecture?
Step 1 (Operation, Indexing): supported architectures
Step 2 (Reasoning, Other Commonsense Reasoning): 64-bit architecture
Step 3 (Reasoning, Other Commonsense Reasoning): the first
Step 4 (Operation, Indexing): name
Answer: windows 2000