iBook

From Mac Guides

The iBook is Apple's consumer laptop. When originally introduced, they were essentially a "portable iMac." They had the same chipset, and features as their desk-bound counterpart. Towards the end of the iBook's life it became a low-end version of the PowerBook. It features a much older processor than the iMac, and seems intentionally crippled so that it does not cannibilize sales of the PowerBook.

Over the last few years, Apple users have experienced persistent problems with the logic boards on some iBooks. Apple instituted extended logic board replacements past the normal warranty period for many of these iBooks, allowing for free repairs as long as the computer is less than 3 years old.