The document outlines the history of computers from mechanical devices through four generations. It begins with pioneers of mechanical computing like Pascal and Babbage. The first generation included the development of the first programmable, electronic computers by people such as Atanasoff, Mauchly, and Eckert. Subsequent generations saw advancements like transistors, integrated circuits, and personal computers created by innovators including Hopper, Noyce, Kilby, Wozniak, Jobs, and Hoff.

1. HISTORY OF COMPUTERS

2. MECHANICAL DEVICES
• Blaise Pascal
• Gottfried Wilhelm von Leibniz
• Charles Babbage
• Ada Byron
• Herman Hollerith
• Howard Aiken

3. FIRST GENERATION OF
COMPUTERS
• John Atanasoff
• Clifford Berry
• John Mauchly
• J. Presper Eckert
• Alan Turing
• John von Neumann

4. SECOND GENERATION OF
COMPUTERS
• John Bardeen
William Shockley
Walter Brittain
• Grace Murray Hopper

5. THIRD GENERATION OF
COMPUTERS
• Robert Noyce
• Jack S. Kilby

6. FOURTH GENERATION OF
COMPUTERS
• Marcian Hoff
• Stephen Wozniak
• Steve Jobs