CHF- 1st lesson

• Microprocessor


  • Central to all processing done by the computer
  • Reads and writes data and instructions to and from storage devices and performs calculations and other data processing
• Port


  Physical connector that allows a cable form a peripheral device to be attached to the computer
• Motherboard


  Core of the system which controls all the devices
• Processor


  Serves as the brain or engine of the PC
• Memory


  Contains data which the processor is using at a given time
• Hard Disk Drives


  Secondary storage that is used when large amounts of data have to be stored

  
• Monitor


  Video display which shows information
• Video Card


  Controls the information displayed on the monitor
• Power Supply


  Source of electrical power of every part of the PC
• PC Power Supply

  • Provides all of the different voltages the computer needs to operate properly
  • Converts the power received from a standard power outlet, converts AC to DC
  • Designed to give an efficient and inexpensive power source, as well as it should generate a minimum amount of heat
• Case


  Frame that houses the system unit
• PC Case Functions

  • Housing
  • Ventilation
  • EMF Elimination and Grounding
• Form Factors


  Refers to the shape and general physical layout of a component
• PC Case Form Factors

  • ATX case
  • micro ATX case
  • Extended ATX case
  • ITX case
• ATX case

  Advanced Technology Extended. This case can house ATX, micro-ATX, and ITX motherboards. Can usually fit 7 or more 120mm fans
• micro-ATX case


  A smaller ATX PC Case that can house micro-ATX or ITX motherboards. This case can usually fit only up to 7 120mm fans
• extended-ATX case

  
  

  this cases house mostly all of ATX sized motherboards (ATX, extended-ATX, micro-ATX, and ITX motherboards). These cases provide more HDD/SSD SATA holders than ATX cases and can hold more than 7 case fans. Commonly used on enthusiast-level workstation (water-cooled systems, etc.)
• ITX case


  Information Technology Extended. The smallest PC Case form factor. It can only support ITX motherboard and is extremely limited on ventilation
• Obsolete PC Case Form Factors

  • AT case
  • Baby-AT case
  • LPX case
• AT case (aka Advanced Technology)


  year 1984, with a round hole at the back used for inserting the DIN plug of old keyboards
• Baby-AT case


  Scaled down model of AT
• LPX case


  Low profile extension format