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Digital Questions and Answers (Q&A)

R. Jones

Curious about the World

Verilog and VHDL are hardware description languages which are used to write programs for electronic chips. These languages are utilized in electronic devices that do not share a computer’s basic construction. VHDL is older than Verilog, and because Verilog is relatively recent, it follows the coding methods of the C programming language. Verilog is case sensitive and would not understand a variable if the argument is used and is not uniform with what it was previously.

VHDL is not case sensitive, and the user can change the case, the characters in the name and the order stays the same. Verilog is easier to learn than VHDL. VHDL has the benefit of having more ideas which aid in high-level modeling, and it indicates the operation of the device being programmed. Verilog lacks the library control of software programming languages. Verilog is rooted in C, while VHDL is built on Pascal and Ada.

3 Answers

The oscilloscope is known to be the tool that you will use in order to view analog voltages. They will show you how these voltages may change over time. They are sometimes used to evaluate the signal integrity and the performance of the various circuits. The logic analyzer will show the signals in digital form so that they will be easier to understand.

They can also compare different signals coming from various systems or circuits. Take note that there are different types of oscilloscopes that are available depending on the details that people want to know. For example, some people would rather choose mixed-signal oscilloscopes over the usual oscilloscope for more detailed information.

2 Answers

S. Barnes

Driving down to Knowledge town

Opacity and Flow are examples of brush tools, they are used in digital graphics, Photoshop. Those who are specialist in painting and sketching of programs will be limited in their works if there is nothing like brush tools like opacity and Flow. They are parts of the basic tools needed for digital graphics and creativity. However, there are some differences between opacity and flow. When you want to change the intensity of any chosen color during painting, opacity is used.


It can be used to decrease or increase the intensity or the strength of a color. Whenever opacity is being applied, the base layer will be disappearing. Flow, on the other hand, is used to control how the colors are scattered. It talks about the rate at the color is being distributed during painting and sketching of programs. Flow is most times used to achieve the needed opacity during painting of programs.

2 Answers

T. Lopez

Let's see how far my knowledge stretches

The analog TVs are already going into extinction as the Digital TVs are gaining more ground and popularity. One major difference between them is that analog TV can process analog signals, while digital TVs can process both analog and digital signals. The analog TVs are well known to be easily prone to some problems like distorted display, noise, and interference.


Though digital TVs too can give these issues some times, that is, if they are operating on analog signals, it can be easily controlled by switching to a digital signal. Analog TV sets have their display, which makes use of cathode ray tubes, while digital TVs make use of the flat panel, such as LED, LCD, and plasma for display. The digital TV sets consume less power than analog TV sets. In addition, digital TV sets are usually lighter and quite portable, while analog TV sets are known to be bulky and big.

2 Answers

On a graph, there are two axis. The x-axis and the y-axis. These axes are usually labeled to represent the relation between two values or quantities. The vertical axis is called the y-axis and the horizontal axis is called the x-axis. These axis are related to each other and can be used to solve equations for different kinds of graphs drawn.

The gradient of the graph is also a valuable quantity that is often calculated from different coordinates of x and y-axis. They are commonly used in mathematics and to solve many arithmetic equations as well as to depict different relations.

1 Answer

You should not make your avatar look like you because people will know what you look like and your name.

1 Answer

To infer about the unknown universe from a knowledge of a random sample drawn from it.

1 Answer

The option I have to read and speak English is not a requirement because you can also apply to obtain your CDA certificate in Spanish or bilingual.

1 Answer

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