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The first series of PowerBooks were hugely successful, capturing 40 % of all laptop sales.

Despite this, the original team left to work at Compaq, setting back updated versions for some time.

When attempting to increase processing power, Apple was hampered by the overheating problems of the 68040 ; this resulted in the 100-series PowerBook being stuck with the aging 68030 which could not compete with newer-generation Intel 80486-based PC laptops introduced in 1994.

For several years, new PowerBook and PowerBook Duo computers were introduced which featured incremental improvements, including color screens, but by mid-decade, most other companies had copied the majority of the PowerBook's features, and Apple was unable to regain their lead.