<s>
The	O
Elektor	B-Device
Junior	I-Device
Computer	I-Device
was	O
a	O
simple	O
6502-based	O
microprocessor	O
development	O
board	O
published	O
in	O
the	O
1980s	O
in	O
the	O
Dutch	O
,	O
German	O
and	O
later	O
French	O
,	O
Spanish	O
,	O
British	O
and	O
Indian	O
versions	O
of	O
Elektor/Elektuur	O
,	O
in	O
the	O
form	O
of	O
a	O
series	O
of	O
articles	O
,	O
and	O
four	O
books	O
.	O
</s>
<s>
The	O
Junior	O
Computer	O
was	O
a	O
virtual	O
clone	O
of	O
the	O
KIM-1	B-Device
,	O
only	O
it	O
did	O
not	O
use	O
the	O
special	O
I/O	O
+ROM	O
chips	O
(	O
MCS6530	O
)	O
but	O
rather	O
an	O
off-the-shelf	O
6532	B-Device
RIOT	I-Device
and	O
a	O
2708	O
1K	O
EPROM	B-General_Concept
.	O
</s>
<s>
It	O
was	O
delivered	O
as	O
an	O
electronic	O
kit	O
,	O
or	O
could	O
purchased	O
as	O
two	O
printed	O
circuit	O
boards	O
(	O
main	O
board	O
and	O
Seven-segment	B-General_Concept
display	I-General_Concept
board	O
)	O
only	O
,	O
for	O
components	O
to	O
be	O
installed	O
.	O
</s>
<s>
As	O
it	O
was	O
much	O
lower	O
in	O
price	O
than	O
an	O
original	O
KIM	O
,	O
many	O
more	O
Junior	O
computers	O
(	O
several	O
thousands	O
)	O
were	O
used	O
in	O
the	O
Netherlands	O
,	O
Germany	O
and	O
France	O
,	O
than	O
original	O
KIM-1s	B-Device
.	O
</s>
<s>
Elektor	O
expansion	O
boards	O
specifically	O
for	O
the	O
Junior	O
were	O
an	O
I/O	O
interface	O
card	O
(	O
including	O
a	O
6522	B-Device
VIA	I-Device
,	O
a	O
tape	O
recorder	O
interface	O
and	O
a	O
RS-232	O
port	O
)	O
,	O
a	O
VDU	O
(	O
video	B-General_Concept
terminal	I-General_Concept
)	O
(	O
an	O
improvement	O
of	O
the	O
previous	O
"	O
elekterminal	O
"	O
design	O
)	O
,	O
an	O
EPROM	B-General_Concept
and	O
SRAM	B-Architecture
expansion	O
board	O
,	O
a	O
16/64KB	O
DRAM	O
board	O
and	O
EPROM	B-General_Concept
programmer	I-General_Concept
board	O
,	O
and	O
a	O
floppy	B-Device
disk	I-Device
controller	I-Device
,	O
as	O
well	O
as	O
a	O
dozen	O
smaller	O
boards	O
for	O
small	O
improvements	O
and	O
interfaces	O
.	O
</s>
