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1.1.1 Describe The History Of The Operating System

By faizal

1.1.1 Describe The History Of The Operating System 

a. First Generating – vacuum tube & plug boards


  1. Use of vacuum tubes
  2. Big & Clumsy
  3. High Electricity Consumption
  4. Programming in Mechanical Language
  5. Larger AC were needed
  6. Lot of electricity failure occurred
    First Generation

b. Second Generating – transistor & batch system


  1. Transistors were used
  2. Core Memory was developed
  3. Faster than First Generation computers
  4. First Operating System was developed
  5. Programming was in Machine Language & Assembly Language
  6. Magnetic tapes & discs were used
  7. Computers became smaller in size than the First Generation computers
  8. Computers consumed less heat & consumed less electricity
    Second Generation

c. Third Generating – ICs & multiprogramming


  1. Integrated circuits developed
  2. Power consumption was low
  3. SSI & MSI Technology was used
  4. High level languages were used
    Third Generation

d. Fourth Generating – Personal Computers


  1. LSI & VLSI Technology used
  2. Development of Portable Computers
  3. RAID Technology of data storage
  4. Used in virtual reality, multimedia, simulation
  5. Computers started in use for Data Communication
  6. Different types of memories with very high accessing speed & storage capacity
    Personal Computer
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