Projektideen

> Forwarded by Paige Bailey

1. "Perpetual calendar. (See appendix.) The telephone dial acts as input, the names of months being written opposite appropriate holes. Any date from 1752 to 2099 may be dialed into the machine, e.g., September 17, 1953. The machine then indicates the corresponding day of the week by lighting one of the group of seven lamps.

2. Dial-pulse register. The board is wired to act as a small dial-pulse register, similar to those used in an automatic office.

3. Nim-playing machine. The machine plays the game of Nim with three piles of up to seven lights in each pile, winning whenever this is possible.

4. Adding circuit. The board can be wired to act as a binary adder similar to those used in computing machines, receiving its input from two sets of pushbuttons and displaying the output on a set of lights. It is also possible to set up a decimal adder with the telephone dial as input.

5. Tic-tac-toe machine. The board can be set up to play Tic-tac-toe against a human opponent, receiving its input from pushbuttons and indicating its move with lights. It will always win if possible, otherwise draw.

6. Automatic elevator. A circuit can be designed for controlling an automatic elevator with four floors and memory of buttons that have been pressed.

7. Miniature telephone exchange. A model exchange with four subscribers can be set up. embodying many of the principles of large offices.

8. Tower of Hanoi. The standard circuits for solving this puzzle can be set up easily on the plugboard.

9. Penny-matching machine. A simplified model of the penny-matching machine circuit can be set up on the machine.

10. Morse encoder. Twenty-six buttons labeled A. B. .... Z are available. If one of these is pressed, the machine produces the corresponding Morse code, the output appearing on a light and a buzzer.

11. Morse decoder. (See appendix.) A key is available as input and twenty-six labeled lights as output. If the key is operated (at proper speed) the machine decodes this signal.

> It takes a week or more to design and trouble-shoot a circuit of the complexity of those listed above. Writing a good laboratory manual for the outfit would probably require a man year of work."

-- Laboratory Manual from - Claude Shannon, 1954