Information Technology: Terminologies, Internet, SDLC Overview

This presentation offers a comprehensive introduction to Information Technology (IT), encompassing essential computer terminologies, the transformative impact of the internet, and the structured approach of the System Development Life Cycle (SDLC). It begins by defining IT and its role in data manipulation and telecommunications, then delves into various computer types, including supercomputers, mainframes, minicomputers, and microcomputers, classified by size and capacity. The presentation further analyzes the influence of Information and Communication Technology (ICT) on economic growth, emphasizing the internet's diverse applications in business, such as effective communication, data storage, social media reviews, and marketing research. Finally, it details the six stages of the SDLC: requirement gathering, design, coding and implementation, testing, implementation, and maintenance. The presentation concludes by highlighting the significance of IT in modern business and technological advancements. It also includes a list of references for further study.

Introduction to Information Technology

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INTRODUCTION (in this, mention about the topic and
the tasks covered in ppt)
 Information technology is the study of the computer science which uses computer
systems and telecommunication for sending retrieving and manipulating the data or
information.
 The study will help in Understanding the use of computer terminologies and it will also
help in understanding the growth of Internet telecommunication in order to exchange
the data from one place to another.
 This report will also help in different stages in which system development occurs.

Uses of computing terminologies
 In this modern world, all the things which are earlier performed with the human efforts
and now these things becomes easy to understand with the use of the computers.
Information technology has expanded all the areas of the world. In order to exchange
the data and information computers works as a middle-ware that provides various
functionalities that supports the internet connectivity throughout the world. These
computers may vary in sizes, capacity according to their capabilities and design of the
system. Following are types of computers which are classified according on the basis of
size and capacity.

Cont..
 Super computers
 These are the physically large and the most powerful computers. These systems are
generally designed to process huge amount of data and such system performs trillions of
calculations within a second. These computers are generally used by governments, large agencies
and because it carries thousands of processors. Super computers costs very high and fast in speed
and accuracy.
 Mainframe
 These computers are also very large in size and it can also compute thousands of operations with a
second of time. These computers are mainly aimed at providing connectivity to thousands of users
at the same time. Mainframe computers are used in flight scheduling, reservations, tax records,
payroll etc.

Cont.. (mention application of different types of computers
in real world)
 Mini
 These are smaller in size then mainframe computers and minicomputers and are less expensive.
These are generally used by small and medium size businesses as a servers. User connect to the
systems using thin clients or dumb terminals. These are generally used in school, computer
laboratories and hospitals.
 Micro
 These are most frequently used machines that are commonly known as personal computer (PC).
These are small computer systems which are basically designed to be used one at a time. These are
also small systems that can be fitted into the briefcase or shirt pocket. Such computer system
includes desktop computers, portable system, embedded computers etc.

Uses of internet and its impacts on the business. Also
analysis the growth of ICT.
 ICT can be termed as the information and communication technology which have
influenced the world by providing various tools that supports the communication and
connectivity all over the world. ICT have greatly impacted on the economic growth of
the developing and developed countries. This technology provides the access to
information through means of telecommunications. IT have contributed largely
towards the growth of country that has mainly focused towards the development of
communication technology. This telecommunication can be possible by providing
internet connectivity, wireless networks, cell phones, other medium that helps in
exchanging the data and information. Telecommunication can be provisioned using the
tool that is internet which provides the connectivity of different devices in order to
share data and information. Internet can be used for many reasons which may leads to
the great impact on the business. These impacts may be negative or positive. Uses of
internet can be described below:

Cont..
(provide importance of internet for an individual and in
selected organization context)
 Effective communication: Profitable organizations may function properly by using the
internet at the work place that may help the employees in effective communication with
the help of emails and estimating the marketing requirement through the use of
Business analytic tool.
 Data storage: Internet provides cloud computing facilities that help in storing large
amount of database over internet. This helps the managers in managing the records of
the business and which also allows them to easily manipulate and retrieve the data
without the major efforts.

Cont..
 Social Media Reviews: Internet also provides various social media platforms which
helps the organization in taking the reviews from the customer in order to increase the
sales of the product.
 Marketing research: Internet can also be used by the organizations in order to analysis
the needs and requirements of the customer in order to maximize the productivity of the
business. This helps organization to develop the goods and services according to the
demands of the consumer which may results in increased sales and therefore this
maximizes the productivity and profitability of the company

System development life cycle
 System development life cycle is referred as the application
development which consists of the process that includes the
planning, creating, testing and deploying an information system.
System development helps in creating an effective system that
enables user to transform a newly developed project in order to
perform a specific operations. This process is mainly used to provide
a framework which helps in meeting the business expectations that is
involved in decision making and its progression. There are six stages
of the system development that helps in developing an effective
system such stages are as follows:

Cont..
 Requirement gathering
 This phase helps in identifying the system requirements of the project or
solution. Tyhis stage helps in analysing the needs and requirements of users in order to
ensure the developed system meets the expectations of the user in order to provide the
specific functionality. This helps in identifying the cost and resources involved in
developing a software.
 Design
 This stage helps in transforming all the requirements into the complete detailed
system design which mainly focus in delivering the required functionality to users.

Cont..
 coding and Implementation
 This stage converts the design into the complete information system which also
includes the coding part and software installation. This also helps in preparing the test
case procedure which ensures the creation of the database to store the information.
Coding phase generally includes the programmed statements which are then compiled
to review the procurement activities.
 Testing
 This SDLC phase helps in demonstrating that the developed system meets the
requirement of the user. Functional requirement, quality assurance and analysis report
is prepared in order to determine the functioning of the software.