1. Computer Hardware

2. Dell Lab Computer without case

3. What is all this stuff??? Power Supply Motherboard Processor
Video Card
RAM (Random Access Memory)
Hard Drive
Cooling
I/O devices (Input/Output)

4. The Power Supply Turns AC power from the outlet into DC voltage
110v AC converted to 3.3v, 5v, and 12v DC
This process generates heat
Why is the power supply designed with all of the slots in it?

5. The Motherboard
The motherboard is what ties all of the parts of a computer together
Power Supply, Processor, RAM, Hard Drive, Video Card, Fans, I/O devices all are plugged into the motherboard.
Motherboard controls all of the systems that make a computer work

6. The Processor
The Processor is what calculates code incoming from the motherboard
All calculations are done in binary code.
Binary Code only consists of 2 digits 0s and 1s
Generates a lot of heat

7. Video Card
The video card is responsible for getting the image to the monitor.
I do not see this in our Dell computer. Why?

8. Video Card
Some motherboards are designed with a video card integrated into it.
Achieves a cost savings but loss in performance

9. Random Access Memory
RAM is a place for the motherboard to store data that will be used by the processor for calculations
RAM has a very fast data transfer rate

10. Hard Drive
The hard drive is another place the computer uses to store data.
Different than RAM
Much slower transfer speeds
New technology uses RAM in harddrives instead of platters
Operating System/Software stored here

11. Cooling a Computer Fan in back of power supply
Computers generate heat and that heat must dealt with to avoid damage
Fans are the most common ways to dissipate heat.
Heat Sinks are another way to deal with the heat problem.
Processors and Power supplies generate so much heat a combination of fan and heat sink are used
Heat Sink without fan
Heat Sink with fan

12. Input and Output Devices
Keyboard
Mouse
Speakers
Scanner
Bar Code Reader
Monitor
Can you name more?