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The PowerBook 140 was released in the first line of PowerBooks. It was the mid-range PowerBook between the low-end 100 and the high-end 170. As with the PowerBook 170 and unlike the 100 this PowerBook featured an internal floppy drive. Codenames for this model are: Tim Lite Tim LC Replacements and Leary. In 1992 it was replaced by the PowerBook 145 which was essentially a speed bump though the PowerBook 160 essentially superseded it as the new mid-line model.