An electrical insulator is a material that does not allow the flow of electric current through them. On the other hand, a dielectric is an electrical insulator that can be polarized on the application of an electric field. The major difference between an insulator and a dielectric is that an insulator opposes the flow of … Read more
Materials can be classified into three main categories on the basis of their electrical conductivity: conductors, semiconductors, and insulators. Conductors are the materials that easily allow the flow of electric current through them. Semiconductor materials have electrical conductivity between the conductors and the insulators. While insulators do not conduct electric current at all. Conductors, semiconductors, … Read more
The semiconductor materials are classified as intrinsic and extrinsic semiconductors. The intrinsic semiconductors are not classified further while extrinsic semiconductors can be further classified as n-type or p-type semiconductors on the basis of the nature of doping. If the impurity added to the intrinsic semiconductor is of group V then the semiconductor thus formed is … Read more
In the field of Digital Signal Processing (DSP), Fourier analysis is used to decompose the signals. The mathematical tool Discrete Fourier transform (DFT) is used to digitize the signals. The collection of various fast DFT computation techniques are known as the Fast Fourier transform (FFT). In simpler words, FFT is just an implementation of the … Read more
The computer is the most widely used device throughout the world. Nowadays, it has become the second basic need of humans to carry out daily tasks. One of the important and defining parameters of a computer is its memory. The way the computer performs its task is incomparable to humans. It runs the number of … Read more
In the communication system, messages or information are sent using electrical signals. The raw message is converted into electrical signals using a transducer. These electrical signals are used to carry the information from source to destination. In baseband communication signals with enough power can be transmitted without any modulation. But in the case of long-distance … Read more
Data Structures can be defined as the collection of data elements that help in storing and manipulating data in an organized manner. Arrays, Vectors, Linked List, Stack, Queue, etc. are all types of data structures. Data structures are the bread and butter of any programming language. It is very important for a programmer to understand … Read more
The field of digital signal processing or DSP includes the design and implementation of filters to filter the signals. These filters are mainly classified into two types depending on the duration of their impulse responses. They are known as infinite impulse response (IIR) filters and finite impulse response (FIR) filters. Let’s see the actual difference … Read more
While studying computer architecture, one often comes around the term address. The term “address” usually refers to the specifics of the place where someone lives or an organization is situated. This definition is somewhat related to the address used in memory management. It uniquely identifies a location in the physical memory of a computer. The … Read more
A signal is a time-varying entity that carries some information from source to destination. Signals can be of many types such as electrical signal, sound signal, light signal, etc. In electronics, communication, and electrical engineering, we care about the electrical signals the most. For transmission of any other signals, we first need to convert them … Read more