Intranets, Extranets, and Enterprise Collaboration

LECTURE NOTES

The Internet and Business

Business use of the Internet is moving from an electronic information exchange to a broad platform for strategic business applications.  Applications like collaboration among business partners, researching competitors, providing customer and vendor support, and buying and selling products and services have become major business uses of the Internet.  Studies show the strong growth of cross-functional business applications, and the emergence of applications in engineering, manufacturing, human resources, and accounting.

HOW HAS MODERN TECHNOLOGY HELP IN THE DEVELOPMENT OF COMMUNICATION IN NIGERIA?

The development of any nation is usually barometered by the degree and extent of the sociocultural, socioeconomic, and political improvement that are brought to bear through the enterprises of science, technology and mathematics. According to Bajah and Fariwantan in Olorundare (2007). Sustainable development leads to fulfillment of societal ideals considered relevant to the needs and aspirations of the society. Factors, which influence such developments, are based on human ability to explore, invent, and utilize. 

Satisfaction of spiritual, physical and material needs and the mastery of the environment are parameters of development when applied to the human society. It has been stated by several authors and scholars that the development of any nation depends very much on the advancement and application of science and technology. The role of science in the development of modern societies is not in dispute more so now that the influence of modern technological innovations is far reaching in every sphere of man’s life. If Nigeria is to build an organized, self-reliant, and technologically compliant society, much emphasis has to be continually made on science and technology.

 

Communication is an essential part of the human experience. However, as humanity evolves, technology is evolving with it, and impacting the way the communicative aspect of our lives functions. The effects of modern technology on how we communicate with one another are vast and varied, with both negative and positive impacts for our business and personal lives.

SUMMARISED CSC 300

Programming Language – A programming Language can be defined as a language that is used to control the behaviours of electronic devices particularly computers. In a nutshell, a programming language is a language used to write computer programs.  A computer program is a set or series of instructions given to the computer by the programmer in a language understood by it to perform an operation.

TYPES OF PROGRAMMING LANGUAGES

Basically, there are three major types of programming languages namely:

1.                 Machine Language

2.                 Assembly Language

3.                 High Level Language

Machine Language:- Machine Language is the natural language of computer.  It uses the binary system written in series of zeros and one (0s and 1s) for all calculations and processes.

Assembly Language:- Assembly Language is a programming Language written in mnemonics or symbols to represent operations.  It uses op codes and operands, even then the language was too cumbersome and gave way to high level language.

SYSTEM DEVELOPMENT LIFE CYCLE (SDLC) IN COMPUTER SCIENCE

INTRODUCTION

SYSTEM DEVELOPMENT LIFE CYCLE (SDLC)

Systems are created to solve problems. One can think of the systems approach as an organized way of dealing with a problem. In this dynamic world, the subject System Analysis and Design (SAD), mainly deals with the software development activities.

DEFINITION OF A SYSTEM

A system is a collection of components that work together to realize some objectives. Basically there are three major components in every system, namely input, processing and output.

SYSTEM LIFE CYCLE

System life cycle is an organizational process of developing and maintaining systems. System development life cycle means combination of various activities.

Definition

The systems development life cycle (SDLC) is the process of understanding how an information system (IS) can support business needs, designing the system, building it, and delivering it to users.

System life cycle is a series of stages that are worked through during the development of a new information system.