tems. However, extra memory
is
relatively
inexpehsive nowadays.
If
you
need extra
memory for
the programs
you
plan
to
use,
you
might
as
well give
your
computer a total
of
64K
memory (which includes the extra memory plus
the memory
it
came
with)
.
Most
Atari 400s come
with
16K
from the factory.
While Atari
has
a 48K upgrade board available,
it
is
a
bit
steep in price. However, 32K, 48K, and
64K memory upgrades for the
400
are available
from independent firms.
Intec's 48K
unit
is
a
good
board
to
buy, although similar products
of
high quality are available from Mosaic Industries
and Axlon.
The
Intec
is
typically available for
under
$100
.
Although
it
may be installed
by
any
individual
who
is
comfortable
with
simple
soldering and component disassembly, such
work
is
best left for qualified service technicians.
A reasonable installation charge
is
about $
10
to
$20.
While most Atari 800s already have 48K in their
systems, those owners
who
would
like
to
free
up a memory slot
or
who
only have
16K
at
pres-
ent can purchase a 32K board. Mosaic's 32K
board has a very
good
reputation for reliability
and clarity
of
display, and
it
carries a five-year
warranty.
Mosaic also makes a 64K board for the
400
and
800
which
is
technically sound,
but
is
of
little
advantage for the majority
of
400
and
800
own-
_
ers.
(Most programs for these computers
will
not
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