dear friends,
A mainframe (also known as "big iron") is a high-performance
computer used for large-scale computing purposes that require greater
availability and security than a smaller-scale machine can offer.
Historically, mainframes have been associated with centralized rather
than distributed computing, although that distinction is blurring as
smaller computers become more powerful and mainframes become more
multi-purpose. Today, IBM emphasizes that their mainframes can be used
to serve distributed users and smaller servers in a computing network.
www.rangefindecamera50webs.com
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