Comp 1

Comp 1

1. Operating Systems

   • Types
     • Multi-tasking
       • Multiple programs being run at once
     • Multi-user
       • Multiple users logged into a main server at once.
     • Distributed
       • Distributes the tasks to other things, so the master won't have to do everything.
     • Embedded
       • A specialised device that does a job very well.
     • Real-time
       • It will execute the task as soon as it possibly can.
   • Uses
     • Manage Hardware
     • Manage programs installed and being run.
     • Manage the security of the system.
     • Provide a GUI.

2. Databases

   • Serial and Sequential
     • They are both stored in rows one by one but sequential has some sort of order, so they may be stored in alphabetical order.
   • Master file