The is the core of the operating system that is loaded into memory when the system boots up. it is responsible for controlling security, managing the file system, and providing a platform for applications to run on. the user rarely interacts directly with this part of the operating system.

solution:

the auto-correct option of the auto-correct tool enables you to add and delete words that do not follow abbreviation rules because:

it is a feature that allows outlook to correct common spelling and typing errors and to replace characters with symbols. we can also can use auto-correct as a shortcut, which means we can type a small string of characters and have those characters replaced by a longer string.