Advantages:-
1)A Laptop is portable, which makes it perfect for students and business people.
2)They have lower power and space requirements than desktop.
3)A Laptop is a complete computer,you are not dependent on peripherals like mice,keyboard and monitor.

Disadvantages:-
1)Laptop computers are difficult to repairs,upgrades or modify due to their integrated design.
2)laptop configurations are limited to those provided by the laptop providers.