Large computer system or mainframes, as they are referred to in the field of computer science, are those computer systems found in computer installations processing immense amounts of data.These powerful machines can be executed more quickly.Whereas smaller computer may take several steps to perform a particular operation.The mainframes can be of two types: digital or analog.The digital computer or general purpose computer as it is often known, it like a gigantic cash register.The analog computer works something like a car speedometer.The digital capable of doing anything the analog once did.A new type of scientific computer systems called the hybrid computer has now been produced that combines the two types into one
The powerful computer require special provision of their housing, power suppliers...because much more space is taken up by peripheral devices<the input-out put devices, storage devices...>
