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Join the two cards together with a tape hinge so that the foil...
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Use the craft knife and steel rule to cut seven divisions betw...
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Mark the keys 0 to 7, left to right. Fold the keys over the pi...
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Connect the wires to the bulbs and battery. When no key is pre...
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Press each key separately on to the fasteners. Watch the circu...
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Steel rule, cutting surface, 2.5V bulbs, pair of compasses, pa...
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Breadboard wire, ruler, pen, pliers, wire strippers, coloured ...
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Attach one end of each stripped insulation wire to a crocodile...
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Make a tube of card and tape it around the light-dependant res...
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Mark the four central data bars with 1s or 0s and stick black ...
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Connect the wires from the reader to the breadboard. Switch th...
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Ask a friend to listen to the buzzer. As each letter is called...
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In the first line of the truth table, no electric pulse enters...
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The gate remains closed, so the clock pulse cannot pass throug...
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In the second line of the truth table, one electric pulse ente...
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The gate remains closed, and once again the clock pulse cannot...
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In the third line of the truth table, one electric pulse enter...
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In the fourth line of the truth table, an electric pulse enter...
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Two input pulses open the gate, allowing the clock pulse to pa...
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1. The computer writes (sends) an eight-bit binary number 0100...
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