Computers, Data and Information

Computers, Data and Information

1. Data and information

   • Data - any collection of numbers, characters or symols
     • ddd
     • Text, number, graphics, sound, date.
       • Information - is data that has meaning

2. Information processing

   • Computers process daya
     • They produce information
       • They are not intelligent
         • They follow instructions (programs/software)

3. Input devices

   • Keyboard
     • Mouse
       • Scanner
         • Web-cam
           • Microphone

4. Output devices

   • VDU / monitor / screen
     • Printer
       • Speakers

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