BOOTING_PARTS

Control Booting

                       Booting is the process of starting or restarting a computer to make computer ready to work.The booting process involves the steps to check the basic hardware of the computer and to load the operating system.While loading the operating system the system files are loaded from the secondary storage device to primary memory or main memory.

The booting process is of two types:warm boot and cold boot

Cold Boot:-

                       In cold boot,booting process starts with turning on the computers switch and performs hardware checking and ends by loading the operating system.It is done when the computer starts from its off state.

Warm Boot:-

                       In warm boot,booting process only involves reloading of the operating system.It does not involve the process of turning the power switch of computer and checking of hardware.It is done when the computer is on,by pressing Ctrl-Alt-Del key simultaneously in IBM compatiable computers.

                       IO,SYS,COMMAND.COM,MS-DOS.SYS are the system files that load in the computer memory during booting processs of MS-DOS operating system.

Basic Terms of Operating System:-

                       File is a named collection of the related information .It contains information about program,data used by program or document created by the user .It is basic unit of storage and user can retrieve,change,delete,save or send the file to other computer .

                       File is indentified by unique name called filename.Filename contains two parts name part and extension type part.

Winword.exe

Name        extension

                       The name part is used to indentify the file and the extension part is used to identify type of file .The name part and extension part is separated by(.) period symbol.

                       The naming convention of the file is OS dependent.Windows operating system supports long file name 256 characters with spaces in between them and extension name more than 3 characters.But DOS does not supports long file name.It contains only 8 characters in name 3 characters in extension without and blank space and special characters.

Example:-

Windows                my photograph@sanga.jpeg

DOS:                      command.com