At age 17, she developed plans for a "machine" that she believed would be able to do complex mathematical calculations. When she pblished her ideas, Lovelace expressed a vision for her machine that"can do anything that can be noted logically, like words, pictures and music, not just numbers". Although her "machine" was never built, Lovelace's notes were read by people building the first computer a century later.

Need to know more about her contributions to modern computing? Check out her Wiki Page