HP Color Inkjet cp1160 Printer series - Manual (Page 207)

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system requirements
Your computer should meet the following requirements:
USB connection
Mac OS 8.6 and 9.X
PowerPC MacOS-based computer with a USB port
Minimum 64 MB RAM
8 MB (minimum) available hard-disk space
Mac OS X and Classic
PowerPC MacOS-based computer with a USB port
Minimum 128 MB RAM
8 MB (minimum) available hard-disk space
AppleTalk connection
PowerPC MacOS-based computer
MacOS version 8.6 to Mac OS 9.X
Minimum 64 MB
8 MB (minimum) available hard-disk space