Apple 12" iBook G4 Laptop This unit has been updated to 1.25 GB of RAM and a 40 GB hard drive. The model number is A1054 and the model ID is Powerbook6,4. Operating system is OS X v10.4.12 (Tiger). The laptop originally served as a network access point in a local high school. The outward appearance of the laptop is not pristine. The case shows some abrasions.One of the original foot pads is missing but alternate pads have been added to maintain stability. A charger and second battery are provided.