Operating Systems

Operating Systems

1. What is O.S.?

   • IS a Software that makes actualy the computer works it allows to share info between the software and harware

2. What is O.S?

3. Structure Of Operatin Systems.

   • Aplications Programs
     • This is dependent on users need. Ex. Railway reservation system, Bank database management etc.,
   • System Programs
     • This layer consists of compilers, Assemblers, linker etc.
   • Software
     • Group Of programs that make the GUI and the functions of a Computer
   • Hardware
     • the periferics and the part of the computer that is fisicaly

4. Types of O.S.

   • Single User Systems
     • Provides a platform for only one user at a time. Cannot to do two or more process at the same time
   • Multi User Systems
     • Provides regulated access for a number of users by maintaining a database of known users. can suport more tha one users at the same time.

5. Evolution of O.S.

   • Open Code
     • A free software with the code opened to use it if you want
   • Licenced
     • A restricted Software that allows use it but you have to pay a licence and cannot see the code.

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