Computer theory by Joseph Jackson

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  • 1. Computer Theory
  • 2. A Brief History of Computers
      • Computers are named "Computers" because their function is to compute mathematical problems. 
      • In the beginning computers were very large and people had to operate some parts of the computer manually.
    •  
  • 3. Computers today
      • The great achievement of computers came in the improvements that made it faster, smarter and much much smaller.
      • Today you carry computers with you most places you go. Maybe it is a Digital Watch, maybe it's a calculator or a cell phone. Maybe you have a computer at home, all of them are 1000's of times more powerful than their ancestors.
  • 4. Hardware
      • Hardware are the components that together allow computers to do what they are made to do.
      • The components break down in to 4 categories
        • Processing
        • Storing
        • Interaction 
        • Peripherals
  • 5. Processing
      • The processing unit is made up of 3 parts and they are
        • CPU
        • Rom
        • Ram
  • 6. CPU
      • CPU stands for Central Processing Unit
        • The "Brain" of the computer
        • Does what the programs instruct it to do. 
        • Carries out all processes of the Computer
  • 7. ROM
      • ROM stands for Read Only Memory
        • Has the basic programming that allows a computer to be set up that cannot be changed.
        • Contains the BIOS 
        • Built in to the Motherboard
  • 8. RAM
      • RAM Stands for Random Access Memory
        • Allows for information to be passed from the CPU to other parts of the computer.
        • The more RAM a computer has the faster it is
    •  
    •  
  • 9. Storage
      • Storage is where the programs are stored and is made up of many parts and break down in to two sections internal and external.
      • Internal
        • Hard Drive or Hard Disk
      • External
        • USB Drives
        • CD's
        • DVD's
  • 10. Hard Drive or Hard Disk
      • A Hard drive is where the programs, information and files of a computer are stored. Information is stored magnetically and can be erased and re-written.
    •  
  • 11. External Storage
      • Stored outside of the computer
        • CD's - Disks that can be written up and used to either store information or run programs.
        • DVD's - A larger format CD's, commonly used to play movies.
        • USB Drives - Small Hard Drives that interact through USB Ports
  • 12. Interaction
      • The interaction components on the computer are what allow the user to access the computer.
      • Most notably they are the:
        • Mouse 
        • Keyboard
        • Monitor/Screen
  • 13. Peripherals
      • Peripherals are other components that are not essential for a computer but allow for a more enjoyable experience.
    •  
  • 14. BIOS
    • Stands for Basic Input/Output System: Is the most basic level that a person can interact with a computer. Written in the ROM all other parts of the computer depend on the BIOS.