"How Operating System works?"?

Answer 1

Sort of like your brain. Your brain tells you what to do when you first get up out of bed, where to go, what tasks lie ahead and how to use the peripherals you have to achieve those tasks. How to interact with other devices and retain information.

The difference is you don't have someone sitting at you giving you commands.

Answer 2

Your computer contains a couple of computer chips that contain something called the CMOS or the BIOS. These are small programs that are designed to start up, check the hardware that is present, then immediately looks for an operating system that it should use to boot the PC. The operating system can be on a floppy drive, on a CDROM, or already loaded onto a hard disk.

The operating system contains a series of utilities, commands, and program that tell it how to communicate with the hardware and the gives it a standard way of displaying information and requesting infromation from the users.

For example, if you are using Windows XP, the operating system gives you the standard buttons to click on, knows what disk utilities to start so it can read the hard disk or the CDROM, and manages the memory usage and other components so that more than one program can be running at one time and they will not interfere with each other.

Some operating systems for PCs that are available today include Windows XP, MacOS for Apple computers, LINUX. Windows Vista operating system was recently announced and will be released with new PCs when you start buying them early this year.

There are also operating systems for larger computer systems used by businesses, such as IBM AIX, HPUX, and Windows 2000.

If you need more information about operating systems, or more specific information, please ask your question again and provide more details of what type of info you are looking for.