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  The world’s first computer programmer.
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  Grace HopperShe was one of the first programmers of the Harvard Mark 1 computer. She developed the first complier for a computer programming language. Grace also conceptualized the idea of machine independent programming languages. She was credited with popularizing the term “debugging” for fixing computer glitches.
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  Is an American computer scientist who developed FORMAC programming language 1962
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  Led development of the original IMB PC
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  Introduced the first portable computer
He specialized in easy-to-follow computer manuals
Founded Paperback Software International, which specialized in inexpensive computer softwar - 
  
  Read more about AnitaCreator of Systers. The first e-mail network for women in technology. Founded the Institute for Women and Technology.
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  Steve Wozniak is known for being the co-founder of Apple with Steve Jobs. He also is known for inventing the Apple Computer ||.
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  More on Bill GatesFounder of Microsoft
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  Was the first computer hacker
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  Steve JobsSteve Jobs was the founder, Chairman, and CEO of Apple inc. In the early 1980 Steve jobs released the first Macintosh.