Domino ComputerLOUPE Study #16 Suzuki Yuka

What’s a domino computer ?

What’s a domino computer ?

http://youtu.be/OpLU__bhu2w

How do make a domino computer ?

How do make?

• Using logic circuits.(OR, XOR, AND)

http://www.think-maths.co.uk/downloads/domino-computer-worksheets

• an electrical circuit → a domino circuit

• Let’s computing 1+1 !

OR

point : one or the other or bothInput A

Input B

Output A OR B

0 0 0

0 1 1

1 0 1

1 1 1

Domino OR

XOR

Input A

Input B

Output A XOR B

0 0 0

0 1 1

1 0 1

1 1 0

point : one or the other not both

Domino XOR

AND

Input A

Input B

Output A AND B

0 0 0

0 1 0

1 0 0

1 1 1

point : one or the other not both

Domino AND

Let’s computing 1+1 !

Input A

Input B

Output A(2)

Output B(1)

0 0 0 0

0 1 0 1

1 0 0 1

1 1 1 0

• build a half adder

Let’s computing 1+1 !

↑failed…

Let’s addition !

Input A

Input B

Input C

Output A(2)

Output B(1)

0 0 0 0 00 0 1 0 10 1 0 0 10 1 1 1 01 0 0 0 11 0 1 1 01 1 0 1 01 1 1 1 1

• build a full adder

Problem

• too slow !

• too big !

• too costly !

Good point is …

We can’t see an electric current.

but…

We can see a dominotic current !