Using
the
scroll
up/down
button
Your
computer
has
a
built-in
scroll
up/down
button.
In
a
progr
am
window
with
a
scroll
bar,
you
can
move
up
and
down
the
windows
using
the
scroll
up/down
button.
When
you
scroll
a
window
using
the
scroll
up/down
button,
the
pointer
on
the
screen
does
not
move.
45
Input/Output
