MS-PS4-3: Digital vs Analog Signals

Front

Analog Information Noun

---

[an-uh-log in-for-mey-shuhn]

Back

Analog Information

---

Information represented by a smooth and continuous signal, like the sound waves in traditional radio or audio recordings.

---

Example: A wave diagram shows how analog information is represented by continuous signals, like sound waves.

Front

Amplitude Noun

---

[am-pli-tood]

Back

Amplitude

---

The measure of a wave's intensity or height from its center, which determines loudness in sound or brightness in light.

---

Example: The image shows amplitude as the height of a wave from its center, explaining wave intensity.

Front

Digital Information Noun

---

[dij-i-tl in-for-mey-shuhn]

Back

Digital Information

---

Information represented by discrete, non-continuous values, typically using whole numbers or binary code like zeros and ones.

---

Example: Digital information is shown as binary code (zeros and ones) on a computer screen.

Front

Sampling Noun

---

[sam-pling]

Back

Sampling

---

The process of measuring an analog signal at regular intervals to convert it into a sequence of digital values.

---

Example: The image shows how an analog signal is sampled at regular intervals to create digital data points.

Front

Sampling Rate Noun

---

[sam-pling reyt]

Back

Sampling Rate

---

The number of samples of an analog signal taken per second to create a digital signal; higher rates improve quality.

---

Example: The image shows how a higher sampling rate captures more details of an audio wave, improving sound quality.

Front

Pixels Noun

---

[pik-suhlz]

Back

Pixels

---

The smallest individual picture elements, or dots of color, that combine to form a digital image on a screen.

---

Example: A grid showing pixels as small squares, illustrating how they form a digital image.

Front

Resolution Noun

---

[rez-uh-loo-shuhn]

Back

Resolution

---

The total number of pixels in a digital image, which determines its sharpness, detail, and overall clarity.

---

Example: Comparing two images shows how more pixels make a picture clearer.

Front

Pixelation Noun

---

[pik-suh-ley-shuhn]

Back

Pixelation

---

A visual effect where individual pixels become visible, creating a blocky or jagged appearance in a low-resolution digital image.

---

Example: The image shows a character with visible square pixels, demonstrating pixelation in low-resolution images.

Front

Noise Noun

---

[noiz]

Back

Noise

---

Any unwanted interference or random disturbance that degrades the quality and clarity of an electronic signal or sound.

---

Example: Sound waves from two speakers interfere, showing how noise can disrupt clear signals.

Front

Binary Adjective

---

[bahy-nuh-ree]

Back

Binary

---

A number system used by computers that represents all information using only two digits, zero and one.

---

Example: The image shows a binary number with decimal equivalents, explaining how binary numbers represent values using powers of two.