Computer theory by Joseph Jackson

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Computer theory by Joseph Jackson

  1. 1. Computer Theory
  2. 2. A Brief History of Computers <ul><ul><li>Computers are named &quot;Computers&quot; because their function is to compute mathematical problems.  </li></ul></ul><ul><ul><li>In the beginning computers were very large and people had to operate some parts of the computer manually. </li></ul></ul><ul><li>  </li></ul>
  3. 3. Computers today <ul><ul><li>The great achievement of computers came in the improvements that made it faster, smarter and much much smaller. </li></ul></ul><ul><ul><li>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. </li></ul></ul>
  4. 4. Hardware <ul><ul><li>Hardware are the components that together allow computers to do what they are made to do. </li></ul></ul><ul><ul><li>The components break down in to 4 categories </li></ul></ul><ul><ul><ul><li>Processing </li></ul></ul></ul><ul><ul><ul><li>Storing </li></ul></ul></ul><ul><ul><ul><li>Interaction  </li></ul></ul></ul><ul><ul><ul><li>Peripherals </li></ul></ul></ul>
  5. 5. Processing <ul><ul><li>The processing unit is made up of 3 parts and they are </li></ul></ul><ul><ul><ul><li>CPU </li></ul></ul></ul><ul><ul><ul><li>Rom </li></ul></ul></ul><ul><ul><ul><li>Ram </li></ul></ul></ul>
  6. 6. CPU <ul><ul><li>CPU stands for Central Processing Unit </li></ul></ul><ul><ul><ul><li>The &quot;Brain&quot; of the computer </li></ul></ul></ul><ul><ul><ul><li>Does what the programs instruct it to do.  </li></ul></ul></ul><ul><ul><ul><li>Carries out all processes of the Computer </li></ul></ul></ul>
  7. 7. ROM <ul><ul><li>ROM stands for Read Only Memory </li></ul></ul><ul><ul><ul><li>Has the basic programming that allows a computer to be set up that cannot be changed. </li></ul></ul></ul><ul><ul><ul><li>Contains the BIOS  </li></ul></ul></ul><ul><ul><ul><li>Built in to the Motherboard </li></ul></ul></ul>
  8. 8. RAM <ul><ul><li>RAM Stands for Random Access Memory </li></ul></ul><ul><ul><ul><li>Allows for information to be passed from the CPU to other parts of the computer. </li></ul></ul></ul><ul><ul><ul><li>The more RAM a computer has the faster it is </li></ul></ul></ul><ul><li>  </li></ul><ul><li>  </li></ul>
  9. 9. Storage <ul><ul><li>Storage is where the programs are stored and is made up of many parts and break down in to two sections internal and external. </li></ul></ul><ul><ul><li>Internal </li></ul></ul><ul><ul><ul><li>Hard Drive or Hard Disk </li></ul></ul></ul><ul><ul><li>External </li></ul></ul><ul><ul><ul><li>USB Drives </li></ul></ul></ul><ul><ul><ul><li>CD's </li></ul></ul></ul><ul><ul><ul><li>DVD's </li></ul></ul></ul>
  10. 10. Hard Drive or Hard Disk <ul><ul><li>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. </li></ul></ul><ul><li>  </li></ul>
  11. 11. External Storage <ul><ul><li>Stored outside of the computer </li></ul></ul><ul><ul><ul><li>CD's - Disks that can be written up and used to either store information or run programs. </li></ul></ul></ul><ul><ul><ul><li>DVD's - A larger format CD's, commonly used to play movies. </li></ul></ul></ul><ul><ul><ul><li>USB Drives - Small Hard Drives that interact through USB Ports </li></ul></ul></ul>
  12. 12. Interaction <ul><ul><li>The interaction components on the computer are what allow the user to access the computer. </li></ul></ul><ul><ul><li>Most notably they are the: </li></ul></ul><ul><ul><ul><li>Mouse  </li></ul></ul></ul><ul><ul><ul><li>Keyboard </li></ul></ul></ul><ul><ul><ul><li>Monitor/Screen </li></ul></ul></ul>
  13. 13. Peripherals <ul><ul><li>Peripherals are other components that are not essential for a computer but allow for a more enjoyable experience. </li></ul></ul><ul><li>  </li></ul>
  14. 14. BIOS <ul><li>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. </li></ul>

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