Complex sentence: Lovelace's notes are important in the early history of computers because she developed a vision of the capability of computers to go beyond mere calculating or number-crunching, while others, including Babbage himself, focused only on those capabilities.
Split into simpler sentences: Lovelace's notes are important in the early history of computers. She also developed a vision of the capability of computers to go beyond mere calculating or number-crunching, while others, including Babbage himself, focused only on those capabilities.