Yes, the first generation Intel Macs had a 32bit CPU.
I bought the original Intel MacBook in 2006, and the last OS update was in 2011 so that wasn't bad. By that time it was already pretty slow due to the limited CPU and memory. That was much longer than you'd expect the Windows equivalent laptop from 2006 to last.
The Core 2 architecture with 64bit support was released in late 2006, and the MacBook updated the same year - less than 6 months after release of the first, so two architectural changes in one year! It's strange Apple didn't just hold off from the initial release for a while.
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Yes, the first generation Intel Macs had a 32bit CPU.
I bought the original Intel MacBook in 2006, and the last OS update was in 2011 so that wasn't bad. By that time it was already pretty slow due to the limited CPU and memory. That was much longer than you'd expect the Windows equivalent laptop from 2006 to last.
The Core 2 architecture with 64bit support was released in late 2006, and the MacBook updated the same year - less than 6 months after release of the first, so two architectural changes in one year! It's strange Apple didn't just hold off from the initial release for a while.