Operating Systems Essay

669 WordsApr 10, 20123 Pages
The concept of the operating system as primarily providing its users with a convenient interface is a top-down view. An alternative, bottom-up, view holds that the operating system is there to manage all the pieces of a complex system. Modern computers consist of processors, memories, timers, disks, mice, network interfaces, printers, and a wide variety of other devices. In the alternative view, the job of the operating system is to provide for an orderly and controlled allocation of the processors, memories, and I/O devices among the various programs competing for them. One of the great features of the Resource Manager for Windows 7 is the Resource Monitor: The Resource Monitor window includes five tabs: * Overview Displays basic system resource usage information * CPU Displays column lists of Processes, Services, Associated Handles and Associated Modules; charts of CPU Usage (separate for every core) * Memory Displays overall Physical Memory consumption and separate consumption of every Process; charts of Used Physical Memory, Commit Charge and Hard Faults/sec * Disk Displays Processes with Disk Activity, Disk Activity and Storage; charts of Disk Usage (KB/sec) and Disk Queue Length * Network Displays Processes with Network Activity, Network Activity, TCP Connections and Listening Ports; charts of Network Usage (separate for every adapter) and TCP Connections The Windows 7 system has two built-in tools -- Resource Monitor and Performance Monitor -- that allow solutions providers to keep tabs on the resources a system uses. Windows 7 Resource Monitor provides a quick summary of overall CPU, disk, network and memory utilization. Windows 7 Performance Monitor lets you examine a large number of counters for specific system processes and services. Solutions providers can use Resource Monitor to see which programs and/or services are

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