Understanding Computers
                         L1 – Elements of a Computer
        What is a 
      Computer?
                                  Understanding Computers
                                 L1 – Elements of a Computer
    Learning Objectives
    • Distinguish between hardware and software
    • Identify Input, Output and Storage devices
    • Name at least five pieces of software
    • Suggest appropriate input and output devices 
      for a given scenario
                                               Understanding Computers
                                            L1 – Elements of a Computer
     Hardware or Software?
     What is Hardware?               What is Software?
     Objects that you can touch, like  You cannot ‘touch’ software. 
     a Music CD. For example:        Software refers to the 
     Disks, disk drives, display     programs that run on a 
     screens, keyboards, printers,   computer, rather like the music 
     boards, and chips.              playing on a CD.
                                     Examples of software: 
                                     Windows, MS Word, MS Excel, 
                                     Kodu and Logo.
                                                 Understanding Computers
                                               L1 – Elements of a Computer
     Input, Output & Storage Devices
    What is an             What is an           What is a 
    output device? input device? Storage device?
    An output device is    An input device is   A storage device is 
    a piece of computer  anything can be        used to permanently 
    hardware used          used to enter data  record or store data.
    display or output      into a computer.     CD, Hard Drive.
    data which has been  Keyboard, Mouse.
    processed or stored 
    in a computer.
    Printer, Speaker.
                           Understanding Computers
                         L1 – Elements of a Computer
   What do each of these images represent? Are they hardware of software? 
   Input, Output or Storage devices?