Прочитайте текст и выберите утверждение соответствующее содержанию текста Zworykin’s most critical i...: ответ на тест 347509 - Английский язык

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Zworykin’s most critical invention was the first iconoscope camera tube, which he patented in 1923. The key to its success was the fact that its silvered-mica photocathodes stored the charges induced by the image that was focussed on them until the scanning electron beam simultaneously neutralized the charges and modulated itself.
A year after he invented the iconoscope, Zworykin invented the kinescope - a TV picture tube - thus becoming responsible for both the key transmitting and receiving elements of electronic television.

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Zworykin’s most critical invention was the first iconoscope camera tube, which he patented in 1923. The key to its success was the fact that its silvered-mica photocathodes stored the charges induced by the image that was focussed on them until the scanning electron beam simultaneously neutralized the charges and modulated itself.
A year after he invented the iconoscope, Zworykin invented the kinescope - a TV picture tube - thus becoming responsible for both the key transmitting and receiving elements of electronic television.

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A solid-state television camera that can be made so small it fits into the palm of a hand is available at present.
At the heart of this camera is a light-sensitive semiconductor “chip” - half the size of a postage stamp. It receives and transmits images coming through the lens in much the same way that a 5-inch long (12.5 cm) tube does in today’s cameras. The device, though complex in principle, promises to simplify the basic television camera so that low-cost, live TV should some day be common in industry and the home.

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The so-called analogue systems of television are to be superseded by digital systems in the near future. Using this new system, Russian experts have managed to encode and compress flows of visual information to the extent that the requirement in the carrying capacity of communication channels has been cut by nearly 86 per cent.
The advantages of digital techniques over analogue electronic systems have demanded that they be used in television. These advantages improve the quality of the picture. While in the analogue system of recording signals noises and errors invariably accumulate at every stage of their transmission or copying, digital recording is almost free of signal errors.

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How does digital television work? Basically it performs by splitting the continuous analogue signal into a series of separate pulses. A continuously varying electric signal generated by a usual broadcasting camera is fed into an electronic device which converts it into pulses. These pulses represent binary recordings of the signal’s values at any given moment. At the receiving end of the circuit, the digital signal of binary pulses can be unscrambled back into the analogue signal which is then fed into ordinary TV sets. But the advantages of digital techniques can themselves be used in TV sets in order to improve their reception qualities considerably.

Выберите соответствия между английскими словами и выражениями и их русскими эквивалентами
1. device
2. circuit
3. to transfer information
4. to charge the battery