Modulation is required to convey signals from one medium to another. These mediums might be physical or through any other medium. The two most common modulations that exist and are utilized by humans are analog modulation and digital modulation. Many individuals favor this digital modulation because of its security and speed. The distinction between analog and digital modulation is that analog modulation is a continuous signal, but digital modulation may be modified over time. Digital modulation, on the other hand, is a discrete signal that can only convey binary information. The sine wave is the wave utilized in analog modulation. ... Read More

When discussing colour management, it is impossible to avoid comparing sRGB with Adobe RGB. Based on the use case, these two colour spaces have diverse applications in photography, computer monitors, digital art, or digital displays Two colour spaces, or colour space profiles, that are often used in digital photography and visual media are the subject of the argument between sRGB and Adobe RGB. Consider that you are playing about with the settings on your digital camera. Most likely, there will be a colour space selection option that lets you choose between Adobe RGB and sRGB.Both of them have advantages and ... Read More

PGP and GPG are both very powerful tools for encrypting your data. Some differences are there between the two which you should be aware of before making a decision about which one to use. Read this article to find out more about PGP and GPG and how they are different from each other. What is PGP? PGP stands for "Pretty Good Privacy" and is a program that creates an encrypted, digital file of a message or document. The sender encrypts the file with a password and only the recipient can decrypt it with their own password. It is a type ... Read More

A logic function is a basically a Boolean expression that returns a Boolean value, which is a value that is either TRUE or FALSE. The NAND gate is a universal logic gate, thus it can be used to implement any type of logic function. Read this tutorial to learn how you can realize different logic functions using NAND gates. Let's start with a basic introduction of the NAND gates What is a NAND Gate? A NAND Gate is a type of universal logic gate that one can use to realize any kind logical expression or any other type of logic ... Read More

A number is a method used for representing an arithmetic value, measure, or count, of a physical quantity. A number system is defined as a method of naming and representing numbers. The concept of number system helps in defining the rules associated with the numbers and different operations on numbers. A number system is determined with the help of its radix or base. The radix or base of a number system is nothing but the total number of symbols used in the number system for representing the different numbers. For example, in the decimal number system, there are 10 ... Read More

A Boolean function is a logical expression that returns a Boolean value, which is a value that is either TRUE or FALSE. In digital electronic circuits, the logic gates are used to implement a conditional or logical or Boolean expressions. A logic gate is a digital circuit that performs a specific logical operation on one or more input variables or signals and generates an output signal. The output of a logic gate is determined by its logical function, which is based on Boolean algebra. In digital electronics, there are several types of logic gates available such as AND gate, OR ... Read More

We can realize or implement a Boolean expression or a logic function as hardware using logic gates. The easiest method of implementing a logic function as hardware using logic gates is to start with the output and moves towards the inputs. The implementation of a logic function with the help of logic gates involves connecting different logic gates in a specific manner. In this article, we shall confine our attention to implementing a logic function using the OR and AND gates only. Let's start the article with a brief introduction of OR and AND gates. What is an OR Gate? ... Read More

In this tutorial, we will discuss the realization of an inverter (NOT gate) with a transistor. But before that let's have a look into the basics of inverter or NOT gate. What is an Inverter (NOT Gate)? An inverter is a single input and single output logic gate that toggles or inverts the logic level (or state) of a single to the opposite state or logic level. The inverter is also known as NOT gate. When a low signal (logic 0) is applied to an inverter, it transforms it to a high signal (logic 1). If a high signal (logic ... Read More

In digital electronics, a subtractor is a combinational logic circuit that performs the subtraction of two binary numbers. However, the subtraction of binary number can be performed using adder circuits by taking 1s or 2s compliments. But, we may also realize a dedicate circuit to perform the subtraction of two binary numbers. In the subtraction of two binary numbers, each subtrahend bit of the number is subtracted from its corresponding significant minuend bit to form a difference bit. During the subtraction, if the minuend bit is smaller than the subtrahend bit, then a 1 is borrowed from the next position. ... Read More

In digital electronics, a logic or logic function is one that follows the rules that governs a logical statement. Logics are implemented by using switching networks, where a switching network is one that is designed by interconnecting a finite number of switches. Example − Let "𝒚" is a logic function, then it may be expressed as, $$\mathrm{Y = f\left ( x_{i} \right ) }$$ Where, xi represents the inputs to the logic network or switching network, and y is the output of the network. There is another term associated with the logic function that is the truth table. The truth ... Read More