all of sani

An operating system is an important part of almost every computer system. A computer system can be diveded roughly into four components: the hardware, ther operating system, the application programm,and the users
The hardware - the central processing unit(cpu) , the memory, and the input/output (i/o) devices- provides the basic computing resources. The applicatino programms- such as word processor,spread sheets, compilers, and web browsers-define the ways in which these resources are used to solve the computing problems of the users. The operating system controls and coordinates the use of the hardware among the various application programm for the various users.