The 4GB file size limit of FAT32 has been an important premise for KNOPPIX (and similar live distros) in the past, and it still is the main reason...
Apple Macintosh 128k/512k/FatMac/Plus clock battery For Sale
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Apple Macintosh 128k/512k/FatMac/Plus clock battery: $5
Selling replacement for non longer produced Energizer battery that was used to keep the date and clock in Original Mac 128K/512K/Plus. It has slightly lower voltage (3.6v) than original battery (4.5v), but it doesnt affect computer function, keeps clock and date perfectly! Made in France, not some NO NAME Chinese product.