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Consider the digital signal of 4 V p-p, 100 Hz shown entering the scope's input in Fig. 1-24. 002 second). This will cause a dot of light to move across the screen from left to right at 2 ms per division (20 ms to cross the entire screen). The dot of light will then jump back to the left end of the screen to start the process again. The vertical deflection knob on the scope is set at 1 V per division. In this example, a signal voltage of 0 V, to +4 V is entering the input. Starting at the left edge of the scope face, first, the dot is deflected four divisions (1 V per division) upward for the first S ms.

Consider the decimal number 648 in Fig. 2-3. The digit 6 represents 600 because of its placement three positions left of the decimal point. The digit 4 represents 40 because of its placement two positions left of the decimal point. The digit 8 represents eight units because of its placement one position left of the decimal point. The total number 648, then, represents six hundred and forty-eight units. This is an example of place value in the decimal number system. The binary number system also uses the idea of place value.

1-6. The processing, storage of data, and output in this system consist mostly of _ _ _ _ (analog, digital) circuits. 1-5. Refer to Fig. l-7(a). The gradually varying current sent from the fuel tank sending unit to the fuel 6. Digital electronics is a huge and rapidly expanding field. Digital computers, in all their forms, serve as the backbone of the Internet. 7. Bistable, monostable, and astable multi vibrators are used to generate digital signals. These are sometimes called latches, one-shot, and freerunning multivibrators, respectively.

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