The first real
device for making
calculations
dates back to
2000 B.C.,
this was the abacus.....

At the beginning of the
epochal change there is
the valvle, a small device,
which was invented for the
radio, and that was able to
speed up calculations
in an incredible way.

The first generation
of computers is based
on three basic functions
which, till now, are
the basis for a data
elaboration process.

The advantage in
the use of a binary
system consists in
the required distinction
of only two
conditions: 0 and 1.

Around 1955,
the memory 
is made by
using millions
of ferrite
nucleus.

By using transistors, 
the computer becomes
faster and cheaper,
and spreads over
the world with
thousands of units.

In 1957, after years
of work, an IBM team
of experts, set up
a symbolic language,
the FORTRAN or 
"formula translator".

Much faster, reliable
and, thanks to the
integrated circuits, smaller
machines represented
the third generation
of computers.

In the seventies,
a computer with
integrated circuits was
capable of making 2
millions of multiplications
in a second.

The biggest effort
in the research on
microprocessor
has been made by
Bell Telephone
of Boston.
 

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