A Brief History of Computers (Cont.)

A Half-Century of Progress
The figure below summarizes the key characteristics of some machines and shows the dramatic changes that have occurred in just over 50 years. After adjusting for inflation, price/performance has improved by almost 100 billion in 55 years, or about 58% per year. Another way to say it is we’ve seen a factor of 10,000 improvement in cost and a factor of 10,000,000 improvement in performance.



Review: A Computer History
    Which was the first commercial computer?

      CDC 6600
      ENIAC
      IBM System/360
      UNIVAC I
Result:        




      Math teacher: If I have three bottles in one hand and    
      two in the other hand, what do I have?    
      Student: A drinking problem.