Q1 Modules

The Q1 is comprised of modules, each on a 13x25 cm board with 40-pin connectors. Here's a detailed look at each module.

ALU Modules

Module Description Parts Images
Adder 8-bit full adder with carry in and carry out. For now the carry in will be tied to ground since the Q1 doesn't make use of it. Also note that I goofed when wiring up the socket: GND and Vcc are in the wrong places and the order of the bits is backwards.
Add/Inc/Dec connector: 
GND NC  NC  NC  NC  NC  NC  NC  NC  NC  Co  S7  S6  S5  S4  S3  S2  S1  S0  Ci
 1   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18  19  20

40  39  38  37  36  35  34  33  32  31  30  29  28  27  26  25  24  23  22  21
NC  NC  NC  B7  B6  B5  B4  B3  B2  B1  B0  A7  A6  A5  A4  A3  A2  A1  A0  Vcc
216 transistors
144 10k resistors
1 socket 		Top
Bottom
A Register 8-bit register with single input and open collector gated output.
ALU connector: 
Vcc WR  I0  I1  I2  I3  I4  I5  I6  I7  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC
 1   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18  19  20

40  39  38  37  36  35  34  33  32  31  30  29  28  27  26  25  24  23  22  21
RD  O0  O1  O2  O3  O4  O5  O6  O7  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  GND
104 transistors
64 10k resistors
8 1k resistors
8 LEDs
1 socket 		Top
Bottom
B Register 8-bit register with one positive/negative input, open collector gated output (connected to input), and constant output (connected to the first ALU source).
ALU connector: 
Vcc RD  WR  D0  D1  D2  D3  D4  D5  D6  D7 ~D0 ~D1 ~D2 ~D3 ~D4 ~D5 ~D6 ~D7  NC
 1   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18  19  20

40  39  38  37  36  35  34  33  32  31  30  29  28  27  26  25  24  23  22  21
V0  V1  V2  V3  V4  V5  V6  V7  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  GND
104 transistors
64 10k resistors
8 1k resistors
8 LEDs
1 socket 		Top
Bottom
C Register 8-bit register with one positive/negative input, and two open collector gated outputs. One of the outputs is connected to the input. The other is used for the second ALU source, which is either the C register (read enabled) or 1 (read disabled).
ALU connector: 
Vcc RD  WR  D0  D1  D2  D3  D4  D5  D6  D7  ~D0 ~D1 ~D2 ~D3 ~D4 ~D5 ~D6 ~D7 NC
 1   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18  19  20

40  39  38  37  36  35  34  33  32  31  30  29  28  27  26  25  24  23  22  21
RO  O0  O1  O2  O3  O4  O5  O6  O7  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  GND
112 transistors
56 10k resistors
8 1k resistors
8 LEDs
1 socket 		N/A
Shifter Left and right shifter with selectors.
ALU connector: 
Vcc A0  A1  A2  A3  A4  A5  A6  A7  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC
 1   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18  19  20

40  39  38  37  36  35  34  33  32  31  30  29  28  27  26  25  24  23  22  21
SHL SHR O0  O1  O2  O3  O4  O5  O6  O7  CO  NC  NC  NC  NC  NC  NC  NC  NC  GND
68 transistors
34 10k resistors
1 socket 		N/A
AND/OR Unit AND and OR unit with selectors.
ALU connector: 
Vcc A0  A1  A2  A3  A4  A5  A6  A7  B0  B1  B2  B3  B4  B5  B6  B7  NC  NC  NC
 1   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18  19  20

40  39  38  37  36  35  34  33  32  31  30  29  28  27  26  25  24  23  22  21
AND OR  O0  O1  O2  O3  O4  O5  O6  O7  CO  NC  NC  NC  NC  NC  NC  NC  NC  GND
108 transistors
58 10k resistors
1 socket 		N/A
CLR/NOT Unit Clear/NOT unit with selectors.
ALU connector: 
Vcc I0  I1  I2  I3  I4  I5  I6  I7  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC
 1   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18  19  20

40  39  38  37  36  35  34  33  32  31  30  29  28  27  26  25  24  23  22  21
CLR NOT O0  O1  O2  O3  O4  O5  O6  O7  CO  NC  NC  NC  NC  NC  NC  NC  NC  GND
67 transistors
42 10k resistors
1 socket 		N/A
Add/Inc/Dec Unit Add/Increment/Decrement unit with selectors.
ALU connector: 
Vcc B0  B1  B2  B3  B4  B5  B6  B7  C0  C1  C2  C3  C4  C5  C6  C7  NC  NC  NC
 1   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18  19  20

40  39  38  37  36  35  34  33  32  31  30  29  28  27  26  25  24  23  22  21
ADD INC DEC O0  O1  O2  O3  O4  O5  O6  O7  CO  NC  NC  NC  NC  NC  NC  NC  GND
Adder connector: 
GND NC  NC  NC  NC  NC  NC  NC  NC  NC  Co  S7  S6  S5  S4  S3  S2  S1  S0  GND
 1   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18  19  20

40  39  38  37  36  35  34  33  32  31  30  29  28  27  26  25  24  23  22  21
NC  NC  NC  B7  B6  B5  B4  B3  B2  B1  B0  A7  A6  A5  A4  A3  A2  A1  A0  Vcc
77 transistors
56 10k resistors
2 sockets 		N/A
Flags Zero detect and CF, ZF, and NF registers. Each register has a single input with a constant output. A single write line controls the registers (the same write line that controls the A register). The input is connected to the input to the A register.
ALU connector: 
Vcc WR  CI  A0  A1  A2  A3  A4  A5  A6  A7  NC  NC  NC  NC  NC  NC  NC  NC  NC
 1   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18  19  20

40  39  38  37  36  35  34  33  32  31  30  29  28  27  26  25  24  23  22  21
CO  ZO  NO  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  GND
60 transistors
36 10k resistors
3 1k resistors
3 LEDs
1 socket 		N/A
ALU ALU board. This connects all the ALU modules together.
System connector: 
Vcc WA  RA  WB  RB  WC  RC  F0  F1  F2  F3  F4  F5  F6  F7  F8  NC  CO  ZO  NO
 1   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18  19  20

40  39  38  37  36  35  34  33  32  31  30  29  28  27  26  25  24  23  22  21
D0  D1  D2  D3  D4  D5  D6  D7  ~D0 ~D1 ~D2 ~D3 ~D4 ~D5 ~D6 ~D7 NC  NC  NC  GND
9 sockets N/A

Control Modules

Module Description Parts Images
Clock Generator Clock phase generator.
Control connector: 
Vcc RST HLT STP NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC
 1   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18  19  20

40  39  38  37  36  35  34  33  32  31  30  29  28  27  26  25  24  23  22  21
SC  WC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  GND
87 transistors
48 10k resistors
8 1k resistors
3 LEDs
5 .47uF capacitors
5 500k trimmer resistors
1 500 ohm trimmer resistor
1 DPDT switch
1 socket 		Top
Bottom
State Machine State machine and next state logic.
Control connector: 
Vcc RST SC  C0  C1  C2  C3  F8  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC
 1   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18  19  20

40  39  38  37  36  35  34  33  32  31  30  29  28  27  26  25  24  23  22  21
S0  S1  S2  S3  S4  S5  S6  S7  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  GND
198 transistors
? 10k resistors
8 1k resistors
8 LEDs
1 socket 		Top
Bottom
Control A Control line decoder and driver for lines 0 through 12
Control connector 1: 
Vcc S0  S1  S2  S3  S4  S5  S6  S7  ~S0 ~S1 ~S2 ~S3 ~S4 ~S5 ~S6 ~S7 CF  NF  ZF
 1   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18  19  20

40  39  38  37  36  35  34  33  32  31  30  29  28  27  26  25  24  23  22  21
F0  F1  F2  F3  F4  F5  F6  F7  F8  ~F0 ~F1 ~F2 ~F3 ~F4 ~F5 ~F6 ~F7 ~F8 NC  GND
Control connector 2: 
Vcc L0  L1  L2  L3  L4  L5  L6  L7  L8  L9  L10 L11 L12 C0  C1  C2  C3  NC  TB
 1   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18  19  20

40  39  38  37  36  35  34  33  32  31  30  29  28  27  26  25  24  23  22  21
I0  I1  I2  I3  I4  I5  I6  I7 ~I0 ~I1 ~I2 ~I3 ~I4 ~I5 ~I6 ~I7  NC  NC  WC  GND
136 transistors
? 10k resistors
2 sockets 		N/A
Control B Control line decoder and driver for lines 13 through 21
Control connector 1: 
Vcc S0  S1  S2  S3  S4  S5  S6  S7  ~S0 ~S1 ~S2 ~S3 ~S4 ~S5 ~S6 ~S7 CF  NF  ZF
 1   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18  19  20

40  39  38  37  36  35  34  33  32  31  30  29  28  27  26  25  24  23  22  21
F0  F1  F2  F3  F4  F5  F6  F7  F8  ~F0 ~F1 ~F2 ~F3 ~F4 ~F5 ~F6 ~F7 ~F8 NC  GND
Control connector 2: 
Vcc L13 L14 L15 L16 L17 L18 L19 L20 L21 C0  C1  C2  C3  NC  NC  NC  NC  NC  TB
 1   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18  19  20

40  39  38  37  36  35  34  33  32  31  30  29  28  27  26  25  24  23  22  21
I0  I1  I2  I3  I4  I5  I6  I7 ~I0 ~I1 ~I2 ~I3 ~I4 ~I5 ~I6 ~I7  NC  NC  WC  GND
146 transistors
? 10k resistors
2 sockets 		N/A
I Register 8-bit register with one positive/negative input and constant output.
Control connector: 
Vcc WR  I0  I1  I2  I3  I4  I5  I6  I7  ~I0 ~I1 ~I2 ~I3 ~I4 ~I5 ~I6 ~I7 NC  NC
 1   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18  19  20

40  39  38  37  36  35  34  33  32  31  30  29  28  27  26  25  24  23  22  21
O0  O1  O2  O3  O4  O5  O6  O7  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  GND
80 transistors
72 10k resistors
8 1k resistors
8 LEDs
1 socket 		N/A
Opcode Decoder One 4-to-4 decoder for the instruction class and one 4-to-9 decoder for the function. Positive/negative function outputs are provided to ease control line decoding.
Control connector: 
Vcc I0  I1  I2  I3  I4  I5  I6  I7  C0  C1  C2  C3  NC  NC  NC  NC  NC  NC  NC
 1   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18  19  20

40  39  38  37  36  35  34  33  32  31  30  29  28  27  26  25  24  23  22  21
F0  F1  F2  F3  F4  F5  F6  F7  F8  ~F0 ~F1 ~F2 ~F3 ~F4 ~F5 ~F6 ~F7 ~F8 NC  GND
82 transistors
64 10k resistors
1 socket 		N/A
Control Control board. This connects all the control modules together.
System connector 1: 
Vcc RST HLT STP NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC
 1   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18  19  20

40  39  38  37  36  35  34  33  32  31  30  29  28  27  26  25  24  23  22  21
D0  D1  D2  D3  D4  D5  D6  D7  ~D0 ~D1 ~D2 ~D3 ~D4 ~D5 ~D6 ~D7 NC  NC  NC  GND
System connector 2: 
Vcc L0  L1  L2  L3  L4  L5  L6  L7  L8  L9  L10 L11 L12 L13 L14 L15 L16 L17 L18
 1   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18  19  20

40  39  38  37  36  35  34  33  32  31  30  29  28  27  26  25  24  23  22  21
L19 L20 L21 NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  GND
10 sockets N/A

System Modules

Module Description Parts Images
XH Register 8-bit register with two positive/negative inputs and two open collector gated outputs (one connected to each of the inputs).
System connector: 
Vcc RA  WA  A0  A1  A2  A3  A4  A5  A6  A7 ~A0 ~A1 ~A2 ~A3 ~A4 ~A5 ~A6 ~A7  NC
 1   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18  19  20

40  39  38  37  36  35  34  33  32  31  30  29  28  27  26  25  24  23  22  21
RB  WB  B0  B1  B2  B3  B4  B5  B6  B7 ~B0 ~B1 ~B2 ~B3 ~B4 ~B5 ~B6 ~B7  NC  GND
160 transistors
72 10k resistors
8 1k resistors
8 LEDs
1 socket 		N/A
XL Register 8-bit register with two positive/negative inputs and two open collector gated outputs (one connected to each of the inputs).
System connector: 
Vcc RA  WA  A0  A1  A2  A3  A4  A5  A6  A7 ~A0 ~A1 ~A2 ~A3 ~A4 ~A5 ~A6 ~A7  NC
 1   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18  19  20

40  39  38  37  36  35  34  33  32  31  30  29  28  27  26  25  24  23  22  21
RB  WB  B0  B1  B2  B3  B4  B5  B6  B7 ~B0 ~B1 ~B2 ~B3 ~B4 ~B5 ~B6 ~B7  NC  GND
160 transistors
72 10k resistors
8 1k resistors
8 LEDs
1 socket 		N/A
P Register 16-bit register with one positive/negative input, one open collector gated output connected to the input and reset.
System connector: 
Vcc RD  WR  RST A0  A1  A2  A3  A4  A5  A6  A7  A8  A9  A10 A11 A12 A13 A14 A15
 1   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18  19  20

40  39  38  37  36  35  34  33  32  31  30  29  28  27  26  25  24  23  22  21
N0  N1  N2  N3  N4  N5  N6  N7  N8  N9  N10 N11 N12 N13 N14 N15 NC  NC  NC  GND
208 transistors
112 10k resistors
16 1k resistors
16 LEDs
1 socket 		N/A
NH Register 8-bit register with one input and one open collector gated output.
System connector: 
Vcc WR  I0  I1  I2  I3  I4  I5  I6  I7  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC
 1   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18  19  20

40  39  38  37  36  35  34  33  32  31  30  29  28  27  26  25  24  23  22  21
RD  O0  O1  O2  O3  O4  O5  O6  O7  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  GND
104 transistors
64 10k resistors
8 1k resistors
8 LEDs
1 socket 		N/A
NL Register 8-bit register with one input and one open collector gated output.
System connector: 
Vcc WR  I0  I1  I2  I3  I4  I5  I6  I7  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC
 1   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18  19  20

40  39  38  37  36  35  34  33  32  31  30  29  28  27  26  25  24  23  22  21
RD  O0  O1  O2  O3  O4  O5  O6  O7  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  GND
104 transistors
64 10k resistors
8 1k resistors
8 LEDs
1 socket 		N/A
OH Register 8-bit register with one positive/negative input and one open collector gated output.
System connector: 
Vcc WR  I0  I1  I2  I3  I4  I5  I6  I7  ~I0 ~I1 ~I2 ~I3 ~I4 ~I5 ~I6 ~I7 NC  NC
 1   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18  19  20

40  39  38  37  36  35  34  33  32  31  30  29  28  27  26  25  24  23  22  21
RD  O0  O1  O2  O3  O4  O5  O6  O7  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  GND
88 transistors
48 10k resistors
8 1k resistors
8 LEDs
1 socket 		N/A
OL Register 8-bit register with one positive/negative input and one open collector gated output.
System connector: 
Vcc WR  I0  I1  I2  I3  I4  I5  I6  I7  ~I0 ~I1 ~I2 ~I3 ~I4 ~I5 ~I6 ~I7 NC  NC
 1   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18  19  20

40  39  38  37  36  35  34  33  32  31  30  29  28  27  26  25  24  23  22  21
RD  O0  O1  O2  O3  O4  O5  O6  O7  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  GND
88 transistors
48 10k resistors
8 1k resistors
8 LEDs
1 socket 		N/A
16-bit Incrementer 16-bit incrementer for next P generation.
System connector: 
Vcc A0  A1  A2  A3  A4  A5  A6  A7  A8  A9 A10 A11 A12 A13 A14 A15  NC  NC  NC
 1   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18  19  20

40  39  38  37  36  35  34  33  32  31  30  29  28  27  26  25  24  23  22  21
S0  S1  S2  S3  S4  S5  S6  S7  S8  S9 S10 S11 S12 S13 S14 S15  NC  NC  NC  GND
210 transistors
150 10k resistors
1 socket 		N/A
Front Panel Front panel
Data path connector: 
Vcc RST STP HLT ID  VD  DP  I0  I1  I2  I3  I4  I5  I6  I7  NC  NC  NC  NC  NC
 1   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18  19  20

40  39  38  37  36  35  34  33  32  31  30  29  28  27  26  25  24  23  22  21
O0  O1  O2  O3  O4  O5  O6  O7  NC  NC  NC  NC  NC  NC  NC  NC  NC  VA  IA  GND
Address path connector: 
Vcc IA  I0  I1  I2  I3  I4  I5  I6  I7  I8  I9  I10 I11 I12 I13 I14 I15 VA  NC
 1   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18  19  20

40  39  38  37  36  35  34  33  32  31  30  29  28  27  26  25  24  23  22  21
O0  O1  O2  O3  O4  O5  O6  O7  O8  O9  O10 O11 O12 O13 O14 O15 NC  NC  NC GND
54 transistors
204 10k resistors
28 .47uF capacitors
25 1k resistors
25 LEDs
27 push buttons
3 toggle switches
2 sockets 		Top
Bottom
RAM RAM board
Connects to the data path and address bus modules.
Address path connector: 
Vcc A0  A1  A2  A3  A4  A5  A6  A7  A8  A9  A10 A11 A12 A13 A14 A15 NC  NC  NC
 1   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18  19  20

40  39  38  37  36  35  34  33  32  31  30  29  28  27  26  25  24  23  22  21
NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC GND
Data path connector: 
Vcc ~OE ~WE D0  D1  D2  D3  D4  D5  D6  D7  NC  NC  NC  NC  NC  NC  NC  NC  NC
 1   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18  19  20

40  39  38  37  36  35  34  33  32  31  30  29  28  27  26  25  24  23  22  21
NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  GND
2 transistors
2 10k resistors
2 .47uF capacitors
4 sockets 		Top
Bottom
Data path Data path controller.
Front panel connector: 
Vcc RST STP HLT ID  VD  DP  I0  I1  I2  I3  I4  I5  I6  I7  NC  NC  NC  NC  NC
 1   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18  19  20

40  39  38  37  36  35  34  33  32  31  30  29  28  27  26  25  24  23  22  21
O0  O1  O2  O3  O4  O5  O6  O7  NC  NC  NC  NC  NC  NC  NC  NC  NC  VA  IA  GND
System connector: 
Vcc RST STP WR  RD  D0  D1  D2  D3  D4  D5  D6  D7  NC  NC  NC  NC  NC  NC  HLT
 1   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18  19  20

40  39  38  37  36  35  34  33  32  31  30  29  28  27  26  25  24  23  22  21
N0  N1  N2  N3  N3  N4  N5  N6  N7  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  GND
Memory connector: 
Vcc ~OE ~WE D0  D1  D2  D3  D4  D5  D6  D7  NC  NC  NC  NC  NC  NC  NC  NC  NC
 1   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18  19  20

40  39  38  37  36  35  34  33  32  31  30  29  28  27  26  25  24  23  22  21
NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  GND
141 transistors
77 10k resistors
8 diodes
1 .47uF capacitor
3 sockets 		Top
Bottom
Address path Address bus controller.
Front panel connector: 
Vcc IA  I0  I1  I2  I3  I4  I5  I6  I7  I8  I9  I10 I11 I12 I13 I14 I15 VA  NC
 1   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18  19  20

40  39  38  37  36  35  34  33  32  31  30  29  28  27  26  25  24  23  22  21
O0  O1  O2  O3  O4  O5  O6  O7  O8  O9  O10 O11 O12 O13 O14 O15 NC  NC  NC GND
System connector: 
Vcc A0  A1  A2  A3  A4  A5  A6  A7  A8  A9  A10 A11 A12 A13 A14 A15 NC  NC  NC
 1   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18  19  20

40  39  38  37  36  35  34  33  32  31  30  29  28  27  26  25  24  23  22  21
N0  N1  N2  N3  N4  N5  N6  N7  N8  N9  N10 N11 N12 N13 N14 N15 NC  NC  NC  GND
Memory connector: 
Vcc NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC  NC
 1   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18  19  20

40  39  38  37  36  35  34  33  32  31  30  29  28  27  26  25  24  23  22  21
A0  A1  A2  A3  A4  A5  A6  A7  A8  A9  A10 A11 A12 A13 A14 A15 NC  NC  NC  GND
144 transistors
80 10k resistors
2 .47uF capacitors
3 sockets 		Top
Bottom
System System board. This connects the whole thing together. 14 sockets N/A
Power Supply Power supply. 5 volts needed (current unknown). 1 socket N/A

Parts Summary

Part Number
PN2222A NPN transistors 3151
10k resistors (1/4 watt) ?
1k resistors (1/4 watt) 139
LEDs 134
40-pin sockets 71
13x25 cm boards 31
DS1270Y-100 SRAM 1

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