Month: July 2021

INTRODUCTION TO COMPUTER NETWORKS A set of devices often mentioned as nodes connected by media link is called a Network. A node can be a device which is capable of sending or receiving data generated by other nodes on the Read More …

Terms used in Data communication A. Data Signal Analog signal is one type of continuous time-varying signals, and these are classified into composite and simple signals. A simple type of analog signal is nothing but a sine wave, and that Read More …

PRINCIPLE OF DATA COMMUNICATION AND COMPUTER NETWORKS DATA COMMUNICATION Refers to a process of transmitting data signals form one point through the network. Basic Communication Model A Communication model is used to exchange data between two parties. For example: communication Read More …

SYSTEM DOCUMETATION System documentation is information about built solution and acts as a reference for future maintenance or update efforts. A description of a program after it has been developed. It is organized based on system functionality rather than when Read More …

Maintenance and review The process of monitoring, evaluating, and modifying of existing information systems to make required or desirable improvements may be termed as System Maintenance. System maintenance is an ongoing activity, which covers a wide variety of activities, including Read More …

SYSTEM DEVELOPMENT LIFE CYCLE (SDLC) (TRADITIONAL MODEL) This methodology was first developed in the 1960s to manage the large software projects associated with corporate systems running on mainframes. It is a very structured and risk-averse methodology designed to manage large Read More …

CS31 Company Law (1)   MAY 2021 QUESTION PAPER FOR COMPANY LAW

PROTOTYPE METHODOLOGY OF SYSTEM DEVELOPMENT A prototype is a working model that is functionally equivalent to a component of the product. The purpose of a prototype is to allow users of the software to evaluate proposals for the design of Read More …

WATERFALL MODEL Waterfall approach was first SDLC Model to be used widely in Software Engineering to ensure success of the project. In “The Waterfall” approach, the whole process of software development is divided into separate phases. In this Waterfall model, Read More …

RAPID APPLICATION DESIGN (RAD) It is a development methodology that provides advanced developments tools, prebuilt, objects, and collaboration tools. These tools include; interative prototyping (at any stage of development), graphical user interfaces builder, computer aided software engineering (CASE), fourth-generation programming Read More …