Time Sharing: in this operating system, OS assigns some time slots to each job. Here,  each job is executed according to the alloted time slots.

               Job1: 0 to 5

               Job2: 5 to 10

               Job3: 10 to 15

Multi-Tasking: in this operating system, jobs are executed in parallel by the operating system. But, we can achieve this multi-tasking through multi-ple processors (or) CPUs only.

                CPU1: Job1

                CPU2: Job2

                CPU3: Job3