Information Technologies

Front

Signal Noun

---

[sig-nuhl]

Back

Signal

---

A piece of information, such as sound or light, that is communicated from a sender to a receiver through the senses.

---

Example: This diagram shows a wave, illustrating how signals like sound or light can be transmitted.

Front

Encode Verb

---

[en-kohd]

Back

Encode

---

To convert information into a specific form or code that is suitable for transmission, storage, or processing.

---

Example: This chart shows how each letter of the alphabet is encoded into binary code, demonstrating the concept of converting information into a specific form.

Front

Transmit Verb

---

[tranz-mit]

Back

Transmit

---

The action of sending or passing on a signal that is carrying information from one place or person to another.

---

Example: Sound waves are converted to radio waves and sent to an antenna for broadcasting.

Front

Receiver Noun

---

[ri-see-ver]

Back

Receiver

---

A person or device responsible for detecting a signal and interpreting the information that the signal contains.

---

Example: A receiver detects signals from microphones, interpreting the information for users.

Front

Electromagnetic Waves Noun

---

[uh-lek-troh-mag-net-ik wayvz]

Back

Electromagnetic Waves

---

Waves of energy, like radio or light, that can travel through space and are used to transmit signals.

---

Example: The image shows how electromagnetic waves have electric and magnetic fields that move together through space.

Front

Wave Modulation Noun

---

[wayv mod-yoo-ley-shuhn]

Back

Wave Modulation

---

The process of modifying a property of a wave, such as its amplitude or frequency, in order to encode information.

---

Example: The image shows how a wave's amplitude is changed to carry information, explaining amplitude modulation.

Front

Amplitude (AM) Noun

---

[am-pli-tood]

Back

Amplitude (AM)

---

A property of a wave, referring to its height or intensity, which can be modified to carry encoded information.

---

Example: The image shows amplitude as the vertical distance from the equilibrium line to the crest of a wave.

Front

Frequency (FM) Noun

---

[free-kwuhn-see]

Back

Frequency (FM)

---

A property of a wave, referring to the number of waves passing a point per second, used to carry information.

---

Example: The image shows how frequency modulation changes a wave to carry information, like sound, using FM radio.

Front

Optical Fibers Noun

---

[op-ti-kuhl fahy-berz]

Back

Optical Fibers

---

Thin, flexible strands of glass or plastic that are used to transmit information over long distances as light pulses.

---

Example: This diagram shows the parts of an optical fiber, including the core and cladding, which help transmit light.

Front

Total Internal Reflection Noun

---

[toh-tl in-tur-nl ri-flek-shuhn]

Back

Total Internal Reflection

---

The complete reflection of a light ray within a medium, allowing light to travel through an optical fiber without escaping.

---

Example: Light reflects entirely inside a glass medium, demonstrating total internal reflection.