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I.C.T Tutorial

Database System Applications and Data Independence

A database application is a software program, which is designed basically for entering and retrieving data from an electronic database and are broadly used. Databases form a basic part of almost all businesses today. For example, when using the internet to browse and get to an online shop to purchase …

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What Is a Database?

A database is a gathering of related information put away or stored for accessible to numerous users for various purposes. The substance or the content of a database is acquired by combining information from all the distinctive sources in an organization, with the goal that information or data are accessible …

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What Is Computer Language? Part3

Fourth Generation Language (4GL) Is a programming language that contains built-in commands for complex task such as sorting data or creates columnar report.  4GL is a programming language that can be employed directly by end users or less skilled programmers to develop computer applications more rapidly than with conventional programming …

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What Is Computer Language – Part2

    High Level Language High Level Language are human oriented language. High Level Language are machine independent and require the support of translator [Compiler / Interpreter] and are self documenting. High Level Language are easy to read, write, learn and understand because it consist general English instructions. Examples of …

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What Is Computer Language? Part1

A language is the fundamental medium of communicating between the computer systems. A programming language consists of all the syntax (instructions) and semantics (meaning) that allows people to communicate with the computer.  Programming language is a set of codes or instructions used to communicate to the machine. Machine code is …

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What Is The Internet?

The Internet is the publicly available worldwide system of interconnected computer networks that transmit information by packet switching over the Internet Protocol (IP). The Internet is a computer network made up of thousands of networks worldwide. No organization owns or is in charge of the Internet.  There are organizations which …

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Types of Information Computing Models

There are several computing models which have been used to provide timely information to managers in the cooperate world. Recently the information system  is organized as a network using file / server technology. To support large data access, the client-server technology is used. Local Area Network (LAN) Is a communication …

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Types Of Information Systems

Different types of information systems have been developed to meet a variety of business needs and these systems are known as computer based information systems. These information systems are Transaction Processing Systems (TPS), Management Information Systems (MIS), Office Automation Systems (OAS), Decision Support Systems (DSS), Executive Support Systems (ESS) and …

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Information System

Definition of information system Information System can be defined as the interaction of man and machine which under man’s control gathers data and broadcasts information. “Information System is the study of complementary networks of hardware and software that people and organizations use to collect, filter, process, create, and distribute data” …

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What Is Computer Virus

A computer virus is software program code which ‘hides’ in other files and when executed can either cause irreparable damage to your computer or (more likely) steal passwords, bank / credit card details and email addresses. It can infect computer programs, data files, computer viruses spread easily between computers through …

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