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| A varying electric current that represents information. |
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| An electric current that is varied smoothly to represent information. |
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| the use of electricity to control, communicate, and process information. |
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| the use of electricity to control, communicate, and process information. |
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| Pulses of current used to represent information. |
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| A material that conducts electricity under certain conditions. |
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| the part of a circuit in which a signal in controlled by a solid material. |
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| A solid-state component used to amplify an electric signal or to switch current on and off. |
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| A circuit that has been manufactured on a chip (a tiny slice of semiconductor), which can contain thousands of diodes, transistors, and resistors. |
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| A sealed glass vacuum tube that uses electrons to produce images on a screen. |
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| A glass tube from which almost all gasses have been removed, and which contains electrodes that control the flow of electrons.[image] |
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| Random Access Memory (RAM) |
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| Semiconductor- What does it look like? |
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| Diode - what does it look like? |
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| What does a transistor look like? |
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| What does an electromagnetic wave look like? |
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| Examples of electromagnetic waves include |
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| microwaves, X-rays, and visible light. |
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| Amplitude modulation and Frequency modulation |
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| The number of waves passing a given point each second. |
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| Amplitude Modulation (AM)- |
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| Changes the amplitude of the carrier wave to match the amplitude of a signal. |
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| [image]
An optical disk is a storage medium from which data is read and to which it can be written by lasers. |
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| [image]
Permanent storage area for data in the computer; the CPU can read these data but not change them. |
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| Software that the author allows others to try out and use for a very small fee.
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| A network feature that allows 2 or more users to exchange messages.[image] |
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