Friday, March 14, 2014

TYPES OF COMPUTER SYSTEMS

Our society is being reshaped by rapid advances in information technologies, Computer,
Telecommunication networks and other digital systems that have vastly increased our capacity to
know, achieve and collaborate. These technologies allow people to transmit information quickly
and widely, linking distance places and to create communities that just a decade ago were
unimaginable.
It is difficult to appreciate just how quickly information technology is evolving. Five
decades ago ENIAC, one of the earliest computers stood ten feet tall and stretched eighty feed
wide; while today, one can buy a musical greeting card with a silicon chip that is 100 times faster
than ENIAC. This extraordinary phase of information technology is bringing people and cultures
together and creating new social dynamics in the process. It is leading to the formation of closely
bonded and widely dispersed community of people united by their interest in doing business or
in sharing experiences and intellectual pursuits. New forms of knowledge accumulation are
developing, as are computer based learning system that opened the way to innovate modes of
instruction and learning.
A computer is an electronic machine, operating under the control instructions stored
inside its memory. As an aid in problem solving, it accepts data, both numeric and non numeric,
processes and presents it in the desired form.

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