Security issue in IT and Emerging Trends
by 21st century has been defined by application of and advancement in information technology. Information technology has become an integral part of our daily life. According …
Tag: ITM
Information And Knowledge Concepts
Perspectives on Knowledge, Information, Data In everyday language we use knowledge all the time. Sometimes we mean know-how, while other times we are talking about …
Communication Media
Magnetic Media One of the most convenient way to transfer data from one computer to another, even before the birth of networking, was to save …
Concepts of Communication Networks
A system of interconnected computers and computerized peripherals such as printers is called computer network. This interconnection among computers facilitates information sharing among them. Computers …
Integrity Constraints, SQL Queries
SQL is a programming language for Relational Databases. It is designed over relational algebra and tuple relational calculus. SQL comes as a package with all …
Number System and Arithmetic: Decimal, Binary, Octal and Hexadecimal Number Systems, Binary Arithmetic
When we type some letters or words, the computer translates them in numbers as computers can understand only numbers. A computer can understand the positional …
CPU, Computer Memory and Mass Storage Devices
Central Processing Unit (CPU) consists of the following features CPU is considered as the brain of the computer. CPU performs all types of data processing …
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