In a computer system, several types of secondary storage devices like HDD, CD, DVD, etc. are used to store permanent data and information. These devices can be categorized into two types namely – magnetic memory and optical memory. A magnetic memory like HDD consists of circular disks made up of non-magnetic materials and coated with a thin layer of magnetic material in which data is stored. On the other hand, optical disks are made up of plastic and consist of layers of photo-sensitive materials in which the data is stored using optical effects. A major advantage of the magnetic disk ... Read More

SEO and SEM both are the techniques to increase the visibility and traffic on a website, however both are quite different from each other. The most basic difference between the two is that SEO focuses on enhancing the organic traffic on a website, while SEM uses different strategies to increase traffic like SEO, paid promotion, etc. Read this article to learn more about SEO and SEM and how they are different from each other. What is Search Engine Optimization (SEO)? Search Engine Optimization (SEO) is a way to increase the visibility of a website by nonpaid forms of advertising. It ... Read More

Channel allocation techniques are used in radio resource management for wireless and cellular networks to distribute bandwidth and communication channels to base stations, access points, and terminal devices.The objective of channel allocation is to maximize system spectral efficiency in bits/s/Hz/site through frequency reuse while maintaining a high level of service by minimizing co-channel and neighboring channel interference among neighboring cells or networks that share the bandwidth.Channel allocation techniques can be grouped into two categories: Fixed Channel Allocation and Dynamic Channel Allocation.Read through this article to find out how these two channel allocation techniques are different from each other.What is Fixed ... Read More

A computer is a system, i.e. it consists of several parts. The two crucial parts of a computer system are – hardware and software. Those parts of computer system which are physical and visible are called the hardware. Whereas, the computer software are the sets of instructions and programs that enable the computer hardware to perform their functions. Both the hardware and software are dependent on each which means we must install the software in the hardware to make it functional. In the same way, the hardware parts of a computer must be present in the system to perform the ... Read More

A projector is a visual display unit that is used to project pictures and films onto a screen. Depending on the technology used, several types of projectors available such as LCD projector, LED projector, DLP projector, 4K Projector, Laser projector, etc. In this article, we will discuss about DLP and LCD projectors, and how they are different from each other. The basic difference between the two is that DLP projectors use a series of mirrors placed on a microchip that act as pixels, whereas LCD projectors use liquid crystals placed between two transparent electrodes and two polarizing filters. What is ... Read More

Both compilers and assemblers are the language processors used to convert software codes written in high-level language and assembly language into machine language codes. Compiler and assemblers are the types of system software. These are required because a computer cannot process a code written in high-level programming language like C, C++, Java, etc. and assembly language. Therefore, it is necessary to convert an HLL or assembly code into machine code for execution. In this article, we will highlight all the key differences between compilers and assemblers. Let's start with some basics of compiler and assembler so that it will ... Read More

Fuzzification is the process of converting a crisp quantity into a fuzzy quantity. On the other hand, defuzzification is the process of translating a fuzzy quantity into a crisp quantity. Read this article to learn more about fuzzification and defuzzification and how they are different from each other. What is Fuzzification? Fuzzification may be defined as the process of transforming a crisp set to a fuzzy set or a fuzzy set to fuzzier set. Basically, this operation translates accurate crisp input values into linguistic variables. In a number of engineering applications, it is necessary to defuzzify the result or rather "fuzzy ... Read More

Both decoder and demultiplexer are types combinational logic circuits used for implementing different types of digital systems. However, the function of a decoder is completely different from that of a demultiplexer. A decoder is a combination logic circuit that decrypts an input data stream from one format to another, whereas a demultiplexer is a combination circuit that routes the data from one input line to any of the multiple output lines. Read this article to find out more about decoders and demultiplexers and how they are different from each other. Let's start with a basic overview of these two combinational ... Read More

A workstation is a computer which is used to access LAN or Internet to get access to documents or perform a task, whereas a server is a software which responds to services requested by a client. Read through this article to know more about workstations and servers and how they are different from each other. What is a Server? A server is a computer, a device, or a program entirely responsible for managing network resources. Servers are called so because they provide the functionality to a "client, " another computer, device, or application. In theory, computers are considered servers ... Read More

A Server is a central place where information and programs are stored and accessed by applications over the network. A Web Server is a server which accepts a request for data and sends the relevant document in return, whereas an Application Server contains an EJB container component as well to run the enterprise applications. In this article, we will discuss the important differences between web server and application server. But before that, let’s have a look into their basics so that it will be easy to understand the differences. What is a Web Server? A Web Server is ... Read More