Answer:
system software is the software which control overall operation of the computer . For eg. Ms.dos ,window 2003 ,etc whereas application software is a software which work on the top of operating system to solve number of problems .For eg. Ms.word,Ms.excel,etc
Ok what's the code i will join
To rewrite something , but in your own words
It is a power-saving mode for a computer.
It is a power-saving mode designed for laptops.