Posts

Showing posts from 2008

Operating system notes

Image
Introduction to computer system   A computer system consists of hardware, system programs and various application programs.                                             (fig: Computer system) Computer system have a capability for gathering data, performing computations, storing information, communicating with other computer systems and generating output. The hardware (the central processing unit, the memory and the input-output devices) provides the basic computing resources for system. The application programs such as word processing, compilers and assemblers defines the way in which these resources and co-ordinates the use of the hardware among the various application programs for the various system users.  The operating system provides the means for proper use of these resources in the operation of the computer system. Definition of operating system:  An operating system is an organized collection of system program that control overall operation of computer system. Basicall