PC system includes not only the hardware, but also any software and peripheral devices that are essential to make the computer function i.e. in simple words a PC system is a complete and working computer. A PC System can be divided roughly into four components: The hardware, the Operating System, the application programs, and the users.
Thus, hardware like Central Processing Unit (CPU), RAM, Hard Disk Drive, Optical Drives (CD and DVD drives), Mother Board, Graphics Card, Sound Card, system bus etc, peripheral devices like Monitor, Keyboard, Mouse and other devices which are external to the computer, along with several application software, constitute a PC System.
One of the most important components of a PC System is the Operating System (OS) without which getting anything meaningful out of the hardware would be a nightmare if not impossible. The Operating System controls and coordinates the use of hardware among the various application programs for various users.
PC System which can be viewed as consisting of various resources like hardware, software and data, the operating system provides the means for proper utilization of these resources. The operating system is quite similar to a government. Like a government, it performs no useful function by itself instead it provides an environment within which other programs can do useful work.
The fundamental goal of a PC System is to execute user programs and to make solving user problems easier. The hardware and the software work together in a synchronized manner for a PC system to achieve performance and reliability.
Since a PC System integrates so many varied components that work concurrently all the time, a PC System is also susceptible to faults and errors that may endanger some valuable data and also the performance of the PC system. For this purpose, several PC Tools are available which are bundled into the operating system.
PC tools are specialized applications that add reliability to a PC System by rectifying the faults and errors caused to a PC System. PC Tools also helps in organizing various system events and keep a track of the entire system condition.
Using PC tools the system can be tested to gather information about it. PC tools can be used to view and collect real-time data about memory, disk, processor, network, and other activity in graph, histogram, or report form and also with the help of PC Tools the system can be set to alert the user when a specified counter's value is above or below a defined threshold.
Various PC tools are used to remove the unused files from the PC system.
It allows Windows to run faster and frees up valuable hard disk space. Disk Defragmenter is another PC tool which explores local volumes and merges fragmented files and folders. Disk Defragmenter can defragment volumes that are formatted with the file allocation table (FAT) file system, the FAT32 file system, and the NTFS file system.
Event Viewer, Shared Folders, Local Users and Groups, Performance Logs and Alerts, and Device Manager are some of the PC Tools to manage system events and performance on the target computer. Each of these PC Tools has some specific task that they perform.
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