Data Computer Communications For Free Public Full

In electronics terms data is a digital bit or digitized analog signal.

This can further be broken down to three; the source system, transmission system and destination system.

Data communication and terminal equipment 1.7.

Data Representation Data representation is defined as the methods used to represent information in computers.

Different types of data can be stored in the computer system.

In other words, all the nodes (computers and servers) are connected to the single cable (called bus), by the help of interface connectors.

This central cable is the back bone of the network and every workstation communicates with the other device through this bus.

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Data Computer Communications For Free Public Full

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ASAFE ADEBARI F. ADEBAYO BELLO OLALEKAN Computer Engineering Department Yaba College of Technology Lagos Nigeria.

ASAFE, ADEBARI F.

ADEBAYO, and BELLO OLALEKAN Typesetting YEKNUA ICT Educational Research- Publication Centre No 07, Christ Possibility Street, Sango- Ota, Ogun State, Nigeria.

No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior permission of the copyright holder.

This book introduces the basic principles, theories and practical of data communication and networking for polytechnics and colleges of technology in line with current national board for technical education curriculum (NBTE).

The book will b e very useful for the readers of different categories as in undergraduate students of university, polytechnics, colleges of e ducation a nd allied institutions in areas of computer Sciences and engineering, and other related disciplines.

There is no doubt that this book will b e very useful to all categories of readers.

This book evolved from our experiences in teaching and research in engineering.

There are some peop le that contributed to the success of the research that gave birth to this bo ok.

We acknowledged all staff of Depar tment of Computer, electrical and electronics engineering for their support.

We acknowledge the contribution of the management of Yaba College of Technology for providing enabling environment for research and publication in the college.

We also acknowledge the contribution of our students from the department of computer, electrical and electronics engineering.

In engineering, exchange of information is not only between people, information exchange also takes place between machines or systems.

Communication has increased significantly in importance in recent years.

Voice services have seen unprecedented increase in use throughout the world with the introduction of mobile phones, with embedded data services such as SMS, and web browsing.

Data is referred to as a piece of information formatted in a special way.

Data can exist in a variety of forms, such as numbers or text on pieces of paper, as bits and bytes stored in electronic memory, or as facts stored in a persons mind.

Strictly speaking, data is the plural of datum, a single piece of information.

In practice, ho wever, people use data as both t he singular and plu ral form of the word.

Data Computer Communications Pdf