Question about M0001 WP (Mac 512K)

pfuentes69

Active Tinkerer
Oct 27, 2021
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I got today a Mac 512K in fairly good shape.
I notice the model number is M0001 WP, but I read that typically it should be M0001 W.
Do you know what means the “P”
Txs!
 

retr01

Senior Tinkerer
Jun 6, 2022
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Hi @pfuentes69! :)👋

It was nicknamed "Fat Mac" back in the day. 🤓 Does your Mac 512k look like this on the back?

1655686249931.png


(Update: at first, it seemed like a Mac 128k with 512k expansion board according to one person's experience back in the day. I need to research a bit. If anyone knows more, please jump in!)
 
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retr01

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Jun 6, 2022
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Found out that the "P" means Pudgy. I am not sure about the significance or history behind that, though. I am hoping someone here can chime in and explain.
 

retr01

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Jun 6, 2022
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Hey @JDW, why some Mac 512k computers are assigned with the "P" at the end, such as M0001 WP? A good friend of mine is a long-time Apple guy like myself (and some of you on Tinker Different are long-time Apple folks, too) and remembers it stood for "Pudgy," yet why would Apple call that besides the nickname of "Fat Mac?" I realize it is because the 512k at that time was a lot more memory than 128k, but is there something else?
 
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slomacuser

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Nov 1, 2021
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The original 128k Macintosh was designated M0001 in the US and M0001P in Europe. There was no name on the front of the system box itself. One the rear, you can determine an early 128k by it simply saying "Macintosh”. Later Macintosh machines were labelled "Macintosh 128K” to distinguish them from the Macintosh 512K, which was introduced later, alongside the 128k.

P after the model number indicates a 220-240V power supply (Europe, Asia, Australia)