Evaluation Of Operating System And Time - Sharing Operating System.

Evaluation Of Operating System:

Early System:

     

      Computer operating systems provide a set of functions needed and used by most application programs on a computer, and the links needed to control and synchronize computer hardware. On the first computers, with no operating system, every program needed the full hardware specification to run correctly and perform standard tasks, and its own drivers for peripheral devices like printers and punched paper card readers. 

   The first operating system used for real work was GM-NAA I/O, produced in 1956 by General Motors' Research division[4] for its IBM 704.

Function Of Operating System:

Time-Sharing Operating System : 

      It is the type of operating system that allows us to connect many people located at different locations to share and use a specific system at a single time. The time-sharing operating system is the logical extension of the multiprogramming through which users can run multiple tasks concurrently. Furthermore, it provides each user his terminal for input or output that impacts the program or processor currently running on the system. It represents the CPU's time is shared between many user processes. Or, the processor's time that is shared between multiple users simultaneously termed as time-sharing.