Computers

Computers

1. Hardware

   • Hardware is the physical parts of a computer
     • Mouse
     • Keyboard
     • Monitor
     • Headphones
     • Speaker
     • Webcam
     • CD
     • They are usually peripheral, devices that are connected to the computer but are not part of it

2. Software

   • Software is the programs that can run on a computer
     • Word
     • Excel
     • PowerPoint
     • Paint.net

3. Input, process, output

   • Input devices
     • Input devices put information into a computer
   • Output devices display information from a computer
   • Storage devices store information

4. Devices for disabled people

   • Sip and puff
     • Uses air pressure to control a wheelchair or other
   • Braille keyboard
     • Instead of letters, it has braille symbols
   • Eye typer
     • Follows the movement of the eye
   • Microphone
     • Listens and types what people are saying

5. Sensors

   • Sensors use some kind of input to perform a task