Page 66 - DCAP104_EXPOSURE_TO_COMPUTER_DISCPLINES

Unit 4: Introduction of Networks

Objectives Notes

After studying this unit, you will be able to:
• Explain sharing data any time any where.
• Discuss use of network.
• Explain common types of network.

Introduction

A computer network, often simply referred to as a network, is a collection of computers and
devices interconnected by communications channels that facilitate communications among users
and allows users to share resources. Networks may be classified according to a wide variety
of characteristics. A computer network allows sharing of resources and information among
interconnected devices.

4.1 Sharing Data any time any where

4.1.1 Sharing Data Over a Network
In addition to saving placemarks or folders to your local computer, you can also save place data to
a web server or network server. Other Google Earth users who have access to the server can then
use the data. As with other documents, you can create links or references to KMZ files for easy
access. Storing a placemark file on the network or on a web server offers the following advantages:
4.1.1.1 Accessibility

If your place data is stored on a network or the Web, you can access it from any computer anywhere,
provided the location is either publicly available or you have log in access.

4.1.1.2 Ease in Distribution
You can develop an extensive presentation folder for Google Earth software and make that
presentation available to everyone who has access to your network storage location or web server.
This is more convenient than sending the data via email when you want to make it persistently
available to a large number of people.
4.1.1.3 Automatic Updates/Network Link Access

Any new information or changes you make to network-based KMZ information is automatically
available to all users who access the KML data via a network link.

4.1.1.4 Backup
If for some reason the data on your local computer is corrupt or lost, you can open any of the
KMZ files that you have saved to a network location, and if so desired, save it as a local file again.

4.1.2 Saving Data to a Server

To make your placemarks or folders available to other people via a server, you need to first save
the file to the appropriate location.

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