Network security is the security provided to a network from unauthorized access and risks. It is the duty of network administrators to adopt preventive measures to protect their networks from potential security threats. Computer networks that are involved in regular transactions and communication within the government, individuals, or business require security. The most common and … Continue reading What Is Network Security And Explain its types.
A database is designed to coherently store and conduct operations on related information. Modern databases are able to support operations on information stores while prioritizing the integrity of the data stored. Every operation or transaction contains a minimum of one independent unit of work which can include reading or writing information to the data store. … Continue reading What is the Purpose of a Database?
The term Knowledge Discovery in Databases, or KDD for short, refers to the broad process of finding knowledge in data, and emphasizes the "high-level" application of particular data mining methods. ... The unifying goal of the KDD process is to extract knowledge from data in the context of large databases. Some people don’t differentiate data … Continue reading What is Knowledge Discovery?
Data processing refers to the process of collecting and manipulating raw data to yield useful information. Data processing is also the conversion of raw data into machine-readable form and its subsequent processing by a computer. Data processing converts the otherwise unusable data into a useful form. It involves data storage, organization, modification and final presentation … Continue reading What is Data Processing?
Data warehousing emphasizes the capture of data from diverse sources for useful analysis and access, but does not generally start from the point-of-view of the end user who may need access to specialized, sometimes local databases. The latter idea is known as the data mart. There are two approaches to data warehousing, top down and … Continue reading What is Data Warehouse?
A data warehouse is a relational database that is designed for query and analysis rather than for transaction processing. It usually contains historical data derived from transaction data, but can include data from other sources. Data warehouses separate analysis workload from transaction workload and enable an organization to consolidate data from several sources. This helps … Continue reading What is a Data Warehouse? Explain its Architecture.
CRT is the technology used in traditional computer monitors and televisions. The image on a CRT display is created by firing electrons from the back of the tube to phosphors located towards the front of the display. Once the electrons hit the phosphors, they light up and are projected on the screen. The color you … Continue reading What is Cathode Ray Tube ?
In computer science and computer programming, a data type or simply type is a classification of data which tells the compiler or interpreter how the programmer intends to use the data. Most programming languages support various types of data, for example: real, integer or Boolean. A Data type provides a set of values from which … Continue reading What is Data type ?
Object Oriented Programming is a paradigm that provides many concepts such as inheritance, data binding, polymorphism etc. Simula is considered as the first object-oriented programming language. The programming paradigm where everything is represented as an object, is known as truly object-oriented programming language. Smalltalk is considered as the first truly object-oriented programming language. OOPs (Object … Continue reading What is is object oriented programming?
A Java virtual machine (JVM) is an abstract computing machine that enables a computer to run a Java program. There are three notions of the JVM: specification, implementation, and instance. The specification is a document that formally describes what is required of a JVM implementation. Having a single specification ensures all implementations are interoperable. A … Continue reading What is JVM, JRE, JDK