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Performance testing is a type of testing that is performed for verifying the performance of a system and to monitor the behavior of the system under stress. It tells about the reliability, stability, response time, and scalability of a system. On the other hand, load testing is primarily aimed for identifying the behavior of a system under the expected load. Read this article to learn more about performance testing and load testing and how they are different from each other. What is Performance Testing? Performance testing is performed over the software to test its performance under a particular workload for ... Read More
Both paging and swapping are important concepts in operating systems that place a process in the main memory for its execution, but they are quite different from each other in many aspects. Read this article to learn more about paging and swapping and their specific characteristics. What is Paging? In OS, Paging is a memory management strategy in which the process address space is divided into blocks of the same size, called pages (where the size of each page is power of 2, and is between 512 bytes and 8192 bytes). The size of the process is then measured in ... Read More
In database management systems (DBMS), there are two terms namely mirroring and replication which are related to copying of data. Mirroring is defined as the process of copying a database to another location, while replication is defined as the process of copying the database objects from one database to another. Read this article to learn more about mirroring and replication and how they are different from each other. What is Mirroring? Mirroring refers to keeping a backup database server for a master database server. If for some reason, the master database is down, then the mirror database can be used ... Read More
We can define an address mode as the way in which the memory address of an operand is specified in a computer instruction. Address modes specify how the location of an operand in memory is represented in an instruction. Operations are performed with the help of some data and the data is stored in a computer memory or registers. On the basis of that, there are two types of addressing modes namely, memory address mode and register address mode. The most basic difference between the two is that in the memory address mode, the address of the operand is present ... Read More
Every programming language has keywords and identifiers. Both keywords and identifiers can be processed by a compiler, however they are quite different from each other. The basic difference between the two is that keywords are the reserve words which are predefined and have a special meaning in the language, whereas an identifier is a unique name assigned to a variable, function, class, etc. Read this article to learn more about keywords and identifiers and how they are different from each other. What is a Keyword? Keywords are reserved words that have a special meaning in a programming language. Therefore, we ... Read More
In computer programming, Inheritance and Polymorphism are two important concepts. The most basic difference between inheritance and polymorphism is that "inheritance" is a concept of objectoriented programming that allows creating a new class with the help of the features of an existing class, whereas the concept "polymorphism" represents multiple forms of a single function. Read this article to learn more about Inheritance and Polymorphism and how they are different from each other. What is Inheritance? Inheritance is a concept in object-oriented programming (OOP) that refers to the process by which an object can take on the features of one or ... Read More
An Identifier is a name assigned to an entity in a computer program so that it can be identified distinctly in the program during its execution. On the other hand, a variable is a name assigned to a memory location that stores a value. Read this article to learn more about identifiers and variables and how they are different from each other. What is an Identifier? Identifiers are used to name a variable, a function, a class, a structure, a union. In other words, an identifier is created to give a unique name to an entity. It can consist of ... Read More
In C, C#, Java or any other programming language, both header files and libraries provide some specific APIs and their functionality to be used in the main file. Both the header file and the library are combined and used as a single unit. But, on the basis of nature of files, we can distinguish between a Header File and a Library. Read this tutorial to learn more about header files and libraries and how they are different from each other. What is a Header File? The file that contains all the header names which are to be used in the ... Read More
Graphics Card and Video Card are often used interchangeably, as they are technically the same. Both cards act as an expansion card to generate output images and to transmit them to a display device. They are also called Graphical Processing Unit (GPU). A GPU has its own memory and processing power to fulfill the high processing requirements of visual experience. Read this article to learn more about graphics cards and video cards and how they are different from each other. What is a Video Card? A Video Card is also called a video controller and appears as a circuit board ... 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