Why do big websites need servers or supercomputers?

Question

what do they need it for

Answer 1

They need it for connections to their multiple programs, such as Home Page, email, games, personal profiles, ...

the list is endless.  These connections are too many to all be on one hard drive.

Each Server, is all the more hard drive space for the users.

In addition, just processing incoming USERS to the many web pages available, and the interfaces with the users, requires many many Servers to manage so many.

^j^

Answer 2

they need loads of RAM so thier buisness stays alive and doesnt crash  

Answer 3

they make it so they handle information really fast. also businesses use supercomputers for research because of how fast they are. as for servers its a way for them to have lots of information in one place.

Answer 4

every website needs a server, bigger ones like google need tens of thousands of servers so they can handle enormous loads of input and still have a reaction time in the milliseconds.