POIT Lesson 6 Peripherals

• Peripherals are devices used for computer input and output  
• ex. mouse (i), keyboard (i), monitor (o),printer (o),USB drive (storage)
• Keyboard reports each key press to a software program that interprets the keystrokes 
• 2 kinds of mice an optical USB wireless and trackball mouse, wired.
• Monitors= output devices LCD monitor and CRT monitor, when they are touch screen they can be inputs too
• A pixel is the smallest colored dot/square that can be displayed on the screen, the more pixels= more detail and clarity, 
• standard resolution- 1280 x 720 pixels 
• HD- 1920 x 1080 pixels
• Printers and scanners 
• there are multi-function items found in offices,scanners (i) 
• will take a pic of what you put in the glass and you can change it, usually turn into PDF files
• inkjets/printers (o) these are the normal ones you would find in your home 
• Drives 
• 3 1/2 in floppy drive
• DVD
• CD-ROM
• Blu-Ray
• External drives 
• they give users more storage options
• External ones are USB's 
• Internal ones are in the computer
• Solid state drive, does not have the mechanical parts and harder to mess up and lose something
• Tower cases usually have at least one bay for optical drive such as a DVD or Blu-Ray drive different sizes and types of drives can all be loaded into the same tower case
• Dream Computer Peripherals 
• Keyboard, Mouse, Monitor, Printer, Scanner, Storage drives, game controllers/joysticks