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A Brief History of Computers From Prehistory to the 21 st Century

A Brief History of Computers From Prehistory to the 21 st Century. David A. Lewis Hyndman Middle Senior High School Hyndman, PA 15545. Part Five - Evolution. The Development of Computers from the 1950s to the 21st Century. 1950s – 1960s. IBM 7090 - Transistors. 1960s – 1970s.

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A Brief History of Computers From Prehistory to the 21 st Century

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  1. A Brief History of ComputersFrom Prehistory to the 21st Century David A. Lewis Hyndman Middle Senior High School Hyndman, PA 15545

  2. Part Five - Evolution The Development of Computers from the 1950s to the 21st Century

  3. 1950s – 1960s • IBM 7090 - Transistors

  4. 1960s – 1970s • IBM System 360 – with Integrated Circuits

  5. Famous Quotes • “I think there is a world market for maybe five computers.” • Thomas Watson, IBM Chairman, 1943 • “There is no reason for any individual to have a computer in their home.” • Ken Olson, Pres. Digital Equipment Corporation, 1977

  6. The Apple • 1976 • Sold as a ‘Do It Yourself’ kit

  7. Jobs & Woz • Steve Jobs • Steve Wozniak • Apple II

  8. IBM PC • 1981 • DOS • Bill Gates • Microsoft

  9. Moore’s Law • Number of transistors on a chip doubles every 2 years • Cost per transistor is cut in half • Twice the power for the same price

  10. Categories of Computers Classifications and Their Meanings

  11. Supercomputer • Cray XT4 • Thousands of processors • Expensive • Complex Tasks

  12. Supercomputer • IBM Deep Blue • Famous for playing chess against Garry Kasparov • Scale: see people in background

  13. Mainframe • Large & Expensive • Many Simultaneous Users • Business • Government • Data Security • Central Control

  14. Workstation • Terminal • Connects to a mainframe • Monitor, Keyboard, & Mouse only

  15. Workstations • Many terminals connect to a Mainframe

  16. Server • ‘Serves’ computers on a Network • Several Meanings • Hardware • Software • Combination • Supplies other computers with data or programs • Server is a Function

  17. Server - Clients

  18. Servers

  19. Personal Computers • Designed for One Person • Multipurpose • Inexpensive

  20. Tower Computer • Upright case • Room for expansion

  21. Desktop Computer

  22. IBM ThinkPad HP Notebook Notebook Computer

  23. MPC Notebook Panasonic Toughbook Apple Mac Book Notebooks

  24. Tablet Computer • Converts from display screen to writing & drawing tablet

  25. Toshiba PocketPC Dell Axim Fossil Wrist PDA Garmin iPac Sprint PDA Phone Hand Held Computers • Many sizes and styles • Wide range of computing abilities

  26. Compaq iPac HP Jornada Personal Digital Assistant

  27. Blackberry 7130 Blackberry 8700g LG PDA Cell Phone Nokia N95 More PDAs

  28. Apple iPhone Steve Jobs shows off an iPhone

  29. Eurotech WWPC Ubiquitous Computer Avalon RF Helmet PC Wearable Computers

  30. Table Computer • Microsoft Surface • Milan

  31. Microsoft Milan Table PC

  32. Asus UltraPortable Laptop

  33. Summary • Cold War sparked technological advances • Integrated Circuits & Microchips • Satellites • Personal Computers were first introduced in the 1970s • Apple II - 1977 • IBM PC - 1981 • Moore’s Law - Every 2 years: • Processing power doubles • Cost per transistor cut in half

  34. Summary • 4 Classes of Computers • Supercomputer • World’s Fastest • Mainframe • Business & Government • Terminal – Workstation • Server • Hardware, Software, or Both • Client – Server Relationship • Personal Computers

  35. Summary • Personal Computers • Tower • Desktop • Notebook • Tablet • Handheld • Wearable

  36. Just for Fun

  37. Just For Fun

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