In most cases many simple tasks equal massive tasks. Computers can do both simple and (given enough power) can also do massive tasks
The most popular is a Panasonic Tough Book, but there are others. They mainly use small, cheap computers that can complete simple tasks.
Commands tell computers what tasks they should perform. Software installed on computers provide the commands users need to complete tasks on computers.
Because it can make u do ur tasks faster
Simple tasks.
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Computers are useful, but not powerful because they depend on the human intelligence to perform some tasks.
What sort of tasks are you refering to? is it manufacturing or databases or what?
No - a supercomputer is a single device or system (although fast and expensive). A massive collection of networked computers can give the results of a supercomputer but they would not be considered one.
All mammals use a computer: their own brains. However, in terms of analog and digital computers, humans are the only mammals that choose to use computers. Primates and other mammals can certainly be trained to use computers to perform simple tasks (mostly through game-play), however it's doubtful if they gain any real benefit. They certainly don't use them through choice.
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Clusters allow one to leverage cheap commodity-grade computer hardware to generate massive amounts of computing power to accomplish the tasks which may typically be assigned to extremely high end computers and supercomputers.
It depends upon what type of maintenance tasks. In the world of computers, many tasks can be set up to run on a regular basis without intervention.