The works of os is to guide the work of the application software. it tells the other software how to do the work in the pc.
the works of os are 
i. program execution 
ii handling input output operations 
iii manupulation of file system
iv error detection and handling
v resource allocation 
vi accounting
vii information nd resource protection

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  • Brainly User
The basic function of a OS is booting the computer and provide the user a interface in which he can perform functions by using the input device easily.

 OS also manages the input given to computer and the output that computer gives to user.

Ensure that a user can perform many functions in same time by providing him a interface to make the functions easy.

OS also helps the user in performing function. it provides a interlace to user n which he can perform functions by using mouse keyboards etc. and ensure that he has perform less coding work for performing function