Output Hardware Monitors  Basic Terms:  – smallest element that can be changed independently on a  – number of on a screen  The more the better the  Expressed in  -the number of used to store color  The higher the number the more true the  32-bit is better than 16-bit  – measured diagonally (and rounded)  – number of horizontal :number of vertical  Used to be 4:3  Now with widescreen, typical is 16:10 or 16:9

Output Hardware Monitors  is a vacuum tube used in a computer or terminal display screen  Big monitors that resemble TV sets  or Flat panel displays, are made of 2 plates of glass separated by a layer of that line up to transmit or block light  Small flat monitors, like those on a

Output Hardware LCD Advantages and Disadvantages  LCD advantages  Small,  Use less (run cooler)  These 2 factors make it  LCD Disadvantages  delays cause problems for games players  Small  Trouble with deep and good

LCD Monitor: What to look for   the measurement of the and the  Question is: how are manufacturers measuring this?  you want a ratio of at least and hopefully or greater  (measured in )  A good level is about 250 – 280   you want at least degrees   Amount of between on monitor  You want less than (preferably less than )   the amount of time needed for a to go from to  you want at least 17 ms and preferably less.  The set of all possible colors  The monitor’s ability to display the colors the graphics card produces numerically (RGB value)  Can be over 100%  Go for at least 70% (considered “normal”)

Output Hardware Video controller  Video Standard  SXGA  UXGA  WXG  WXGA+  WSXGA+  WUXGA  QWXGA  WUXGA  Native resolution (pixels)  1280 x 1024  1600 x 1200  1280 x 800  1440 x 900  1680 x 1050  1920x1080  2048 x 1152  1920 x 1200  usually on that interfaces with your monitor  Can be separate (gamers, graphic artists, anyone who needs faster )  AKA Graphics Accelerator Card, Video adaptor  Quality of relies on as much as on quality of  Video Cards have their own (called ) and ( )  : the physical number of and pixels that make up the LCD matrix of the display  Monitor Size  17-19”  20” +  17” Widescreen  19” widescreen  22” widescreen  23.6” widescreen  23” ultra widescreen  24” widescreen

HP L " LCD Monitor  Specifications  Display Type: LCD display  Screen Size: 17"  Display Format: 4:3 Standard LCD  Contrast Ratio: 5000:1  Brightness: 300 nit (or cd/m 2 )  Response Time: 5 ms  Pixel Pitch: 277mm  Horizontal Viewing Angle: 160 degrees  Vertical Viewing Angle: 160 degrees  Maximum Resolution: 1920 x

Output Hardware Printers  characters or images by striking a or wheel against an ink ribbon  Use and like in photocopiers  Produce crisp, professional pages  - Spray from 4 at high speed  –Melts dots of colored onto paper  Used for book covers, posters, etc.  A specialized designed to produce graphics in a variety of colors  The earliest output device that could produce graphics  Pen use one or more colored pens

Output Hardware Ink jet vs Laser Printer  Ink Jet  upfront  replacement cartridges  Prints in  Photo-quality images (resolution is at least 360 dpi)  But…  Print (usually pages per minute)  Cartridges need to be often  Look for cartridge – the higher the, the more the cartridge holds (19mL better than 4mL)  Cartridges  Ink  Price per page – about cents

Output Hardware Laser Printer  Laser  more upfront  Cartridges more  printer  Usually prints in  Cost of laser printers becoming less prohibitive  But…  Print ( pages per minute)  600 dpi up to 1800 dpi  Cartridges don’t need to be very often  Cartridges don’t  Ink doesn’t (very images)  Ink doesn’t or run  per page – about cents

Output Hardware Photo Printer  Variant on printer (usually)  Uses more than the 4 basic (up to 9)  Use a special technology to transfer to   Transfers color onto the paper in a series of passes  Renders subtle well  Finishes with a pass of to protect  Often uses special  Can print directly from compatible digital  Most accept camera’s 5-10

How to choose a printer  : measured in  Higher = better quality.  600 means the printer can print 360,000 (600x600) dots in a square inch  : measured in  Most printers have different rates for text and for graphics  Initial Cost  Cost of :  How much is it to replace the ink or toner cartridges  Printer  in the pc that works with printer for printing  Some just deal with printing, others do things like balance color, resize photos, adjust individual colors, etc.   The straighter, the better, and the heavier the paper the printer can handle.  Straight (in front, out back) is better than (in front, out top), which is better than ( in front, out front)).