Output Devices Any questions from the previous class?

Printers Laser Printer Inkjet Printer Dot Matrix Printer Plotter

Laser Printer Low noise Fast Few emissions High volume printing Not as high quality as inkjet printing, especially for color

Inkjet Printer Better quality for color photographs Expensive!

Dot Matrix Fast Cheap LOUD

Plotter For big printing Uses a pen, so can only create line graphics

The Guts! What do you know about the inside of a computer?

Case Holds everything together Vibration – bad!

Power Supply Needs to be big enough for all of the components External cable Internal cables

Fan The inside of the computer can get very hot! Fans are needed to circulate air

Motherboard Main internal part of the computer All components connect to it.

CPU Central Processing Unit Fetch Decode Execute Writeback

Heatsink CPUs get VERY hot Must be able to keep it cool

RAM Random Access Memory Stores what is needed right now

Back Panel For things you plug in once.

Drive Bay All drives are the same size Can fit into the same place in the case

PCI Peripheral Component Interconnect AGP: Accelerated Graphics Port PCIe: PCI Express

Cables, Cables, Cables Power cables – from power supply to components SATA cable – from motherboard to components –Older: IDE, ATA

Homework Hardware quiz Good luck!