All the parts

Like a construction-kit manual — all the parts of the lesson 5 calculator. Each bag is the same calculator taken apart down to its own level, so the bags do not add up: transistors sit inside gates, gates inside adders.

Bag 1

Transistors

The whole calculator of lesson 5 down to the bottom: 1 208 transistors — N and P in equal numbers, because every gate is built in pairs.

×604

N transistor

×604

P transistor

Bag 2

Gates

Our own gates from lesson 1. XOR is itself built from OR, NAND and AND — here it is counted as a part of its own.

×56

XOR

16 tr.

×92

AND

6 tr.

×72

6 tr.

Bag 3

Adders

The bricks built lesson by lesson: each one is made of the ones before.

×32

22 tr.

×16

50 tr.

×4

ADDER4

200 tr.

×4

ADDSUB4

302 tr.

×2

ADDSUB8

604 tr.

Bag 4

Controls and displays

How to set the numbers and where to see the answer.

×17

Switch

A0…A7, B0…B7, SUB

×2

Lamp

−, V

×3

Display

A, B, M

×1

Power

×1

Ground

Bag 5

Connections

Labels, splices and wires on the calculator canvas.

×73

Labels

×0

Splices

×73

Wires