input devices

input devices

1. hardware device that send data to computer

2. input devices on a computer

   • keyboard
   • mouse

3. types of input devices

   • scanner
   • webcam
   • touch screen
   • pointing device
   • barcode reader
   • BIOMETRICS
   • BUISNESS CARD READER

4. ADVANTAGES AND DISADVATAGES

   • ADVANTAGES
     • EASY TO USE
     • CHEAP TO PRODUCE
     • trackball is easier to use than a mouse if user has wrist or finger problem
     • touchpad is faster to navigate through an application compared to using a keyboard
     • there is no extra device to carry as the touchpad is built into the computer
   • DISADVANTAGES
     • KEYBOARD IS A SLOW METHOD FOR ENTRING LARGE AMOUNTS OF TEXT
     • IN NUMERIC KEYPAD SMALL KEYS MIGHT BE HARD TO SEE
     • IN JOYSTICKS ENTERING TEXTIS VERY SLOW AS YOU HAVE TO SELECT INDIVIDUAL LETTERS

5. HARDWARE DEVICES THAT ARE USED FOR THE ENTRY OF EITHER INSTRUCTIONS OR DATA INTO THE COMPUTER FOR PROCESSING