Step-by-step explanation:
b. Windows operating system provides an easy-to-use interface to operate the computer. After completing work on the computer, you need to shut down the computer properly to avoid any data loss or damage.
c. Once you start your computer, what you see on the screen is called the desktop.
d. The small picture buttons that represent commands, programs, files or folders are called icons.
e. In Windows 8 and later versions, the Start button is replaced by the Start screen, which displays a tile-based interface of apps and shortcuts.
f. A file name has two parts, the filename and the file extension, separated by a dot. The file extension indicates the type of file and determines which program can open it.
g. So it is very important to use the correct file extension when saving a file in Windows-8, as it can affect the ability of other programs to open or use the file.