Timesharing Operating Systems On a single processor system, o"Round robin"scheduling system switches between threads and processes fast enough that it appears that multiple programs are running o Only one is every truly executing at a time On multi-core or multi-processor systems, o Threads or processes can be allocated across the processors True parallel processing o“Round-robin”scheduling still occurs 6Timesharing Operating Systems • On a single processor system, o “Round robin” scheduling system switches between threads and processes fast enough that it appears that multiple programs are running o Only one is every truly executing at a time • On multi-core or multi-processor systems, o Threads or processes can be allocated across the processors ▪ True parallel processing o “Round-robin” scheduling still occurs 6