ENIAC:
The
Computer
that
Changed
the
World The
Electronic
Numerical
Integrator
and
Calculator,
or
ENIAC,
was
the
first
electronic
digital
computer
in
the
world.
It
was
built
during
World
War
II
to
calculate
the
trajectories
of
artillery
shells,
but
its
influence
went
far
beyond
the
battlefield.
ENIAC
paved
the
way
for
modern
computing,
revolutionizing
science,
engineering,
business,
and
daily
life. ENIAC
weighed
30
tons
and
occupied
an
entire
room,
but
it
was
capable
of
performing
5,000
additions,
357
multiplications,
and
38
divisions
per
second.
Compared
to
its
predecessors,
such
as
the
mechanical
calculators
and
the
punch
card
machines,
it
was
orders
of
magnitude
faster
and
more
accurate.
It
used
vacuum
tubes
instead
of
mechanical
gears
to
perform
calculations,
and
it
stored
its
programs
and
data
electronically,
eliminating
the
need
for
manual
labor. ENIAC
was
used
for
a
variety
of {研习更多 十二星座的月份表知识请关注 :88星座网,wWw.88Xz.cC』）
applications,
including
nuclear
weapons
design,
weather
prediction,
and
census
analysis.
Its
success
motivated
the
development
of
other
electronic
computers,
such
as
UNIVAC
and
IBM
701,
which
continued
to
push
the
boundaries
of
computing
power
and
efficiency. Today,
we
take
for
granted
the
ubiquitous
presence
of
computers
in
our
daily
lives.
We
use
them
to
communicate,
learn,
work,
play,
and
even
fall
in
love.
But
ENIAC
reminds
us
of
the
long
and
winding
road
that
led
us
here,
filled
with
innovation,
perseverance,
and
imagination. As
we
celebrate
the
75th
anniversary
of
ENIAC's
completion,
we
also
reflect
on
the
challenges
and
opportunities
that
lie
ahead.
We
face
complex
problems
such
as
climate
change,
pandemics,
poverty,
and
inequality,
that
require
sophisticated
computational
tools
and
interdisciplinary
collaboration.
ENIAC's
legacy
inspires
us
to
dream
big
and
work
hard
to
make
the
world
a
better
place
for
all. ENIAC
may
have
been
an
old,
clunky,
and
noisy
machine,
but
it
was
also
a
symbol
of
human
ingenuity
and
ambition.
It
showed
us
that
anything
is
possible
if
we
put
our
minds
and
hearts
into
it.
Who
knows
what
the
next
75
years
of
computing
will
bring?
One
thing
is
certain,
though:
ENIAC
will
always
be
remembered
as
the
computer
that
changed
the
world.