<s>
RAM	B-General_Concept
pack	I-General_Concept
,	O
RAMpack	B-General_Concept
,	O
RAM	B-Architecture
expansion	O
cartridge	O
,	O
RAM	B-General_Concept
expansion	I-General_Concept
unit	I-General_Concept
(	O
REU	O
)	O
,	O
memory	O
expansion	O
pak	O
and	O
memory	O
module	O
are	O
some	O
of	O
the	O
most	O
common	O
names	O
given	O
to	O
various	O
self-contained	O
units	O
or	O
cartridges	O
that	O
expand	O
a	O
computer	O
,	O
games	O
console	O
or	O
other	O
device	O
's	O
own	O
internal	O
RAM	B-Architecture
in	O
a	O
user-friendly	O
manner	O
.	O
</s>
<s>
the	O
Atari	B-Device
800	I-Device
's	O
CX852	O
and	O
CX853	O
modules	O
or	O
the	O
Nintendo	B-Operating_System
64	I-Operating_System
Expansion	O
Pak	O
)	O
.	O
</s>
<s>
The	O
ZX81	O
16K	O
RAM	B-Architecture
expansion	O
gained	O
particular	O
notoriety	O
for	O
the	O
"	O
RAM	B-General_Concept
pack	I-General_Concept
wobble	O
"	O
problem	O
because	O
it	O
was	O
top-heavy	O
and	O
only	O
supported	O
by	O
the	O
edge	O
connector	O
.	O
</s>
<s>
Saturn	O
carts	O
,	O
1	O
or	O
4MB	O
of	O
RAM	B-Architecture
,	O
sold	O
by	O
SNK	O
and	O
Capcom	O
respectively	O
for	O
use	O
with	O
their	O
games	O
.	O
</s>
