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operating systems

1. types

   • windows
   • android
   • unix

2. what are they

   • operating systems are the things and bases of the computer and the communicator, it communicates with ther computer parts

3. custom written

   • this is software that is spacifically made for the user or system
   • advantages
     • its made for a user so its built around the buyer so its easier for them
     • it cant be used by anyone else so its unique
   • disadvantages
     • expensive
     • cant change it wants made

4. off the shelf