The cloud refers to the Internet, regarded as an abstract amorphous omnipresent space for processing and storage.
Desktop, smartphone, laptop and tablet are devices that uses the internet for its operations. They are mostly used for processing and storage.
A cloudy atmosphere affect the functions of these devices. It makes the devices non responsive to the internet. Cloudy atmosphere either slows the rate of the internet or doesn't make it work at all.
Therefore, the devices which rely heavily on the cloud are "smartphone" and "laptop".
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