MATERIALS FOR STUDENTS

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  OS MATERIALS FOR BCA UNIT-1: Operating System is an Interface between a Computer User and Computer Hardware. Every general-purpose Computer must have an Operating System to run other programs and applications. It acts as an intermediary between user and computer.  An Operating System (OS) is a System Software that controls and co- ordinate the execution of the programs.  The purpose of an Operating System is to provide an environment in which the Users can execute his Programs.  The Primary Goal of an Operating System is to make the Computer Systems convenient to use.  The Secondary Goal of an Operating System is to use the Computer Hardware in an efficient manner A Computer System Can be divided roughly into four Components: a. The Hardware b. The Application Programs c. The Operating Systems d. The Users a) The Hardware: The Central Processing Unit (CPU) Memory, I/O Devices Provides The Basic Computing Services For The Systems. b) The Application Programs: The Application Progr