Some
Keys You
Will
Use
with
DOS
In addition
to
the keys
you'd
find
on
a typewriter,
your
keyboard has some special keys
you'll
use with DOS.
Before
we
get
to
the
special keys, here are a few
~
differences between
your
keyboard and a typewriter,
~
j
that
you
need
to
know.
Characters
That
Look Alike-
Oh's
and
Zeros,
Ones
and
Els
Computers are fussy
about
the
number
zero and the letter
O-they
want
what
they
want, and
you
can't
fool
them
into
taking the wrong one.
Make sure
you
type
the right key
in
commands and filenames.
On
our
printer,
the
letter 0 looks a
little squarer than the
number
O.
On
our
screen,
the
number
zero has a
diagonal line through it, something
like this:
(/J
If
you
are used
to
typing a lowercase
L for
the
number
1
(if
you
have used
a portable typewriter a lot, for
example),
you'll
have to break
that
habit.
Again,
the
computer
knows the
difference. Use the
number
key
when the
number
I is required,
as
in a
filename such
as
DATAI23.
(Now
if
you
were
to
use lowercase L when
creating a filename,
that's
okay.
Just
be sure
to
use
it
again when
you
want
to
use
that
file!)
DOS 3-12
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