The document discusses networks, telecommunications, and mobile technology. It describes different types of networks including local area networks (LANs), wide area networks (WANs), and metropolitan area networks (MANs). It also discusses how businesses use technologies like Voice over IP (VoIP), virtual private networks (VPNs), and value-added networks (VANs) for advantages. The document then covers mobile technologies including wireless local area networks (WLANs), cellular phones, cordless computer peripherals, satellite television, WiMax, and security sensors. It provides examples of how businesses use satellite technologies for location-based services (LBS), geographic information systems (GIS), and global positioning systems (GPS).

1. Networks, Telecommunications, and Mobile Technology
 NETWORKS AND TELECOMMUNICATIONS
 Network Basics
 Local area network (LAN)
 Designed to connect a group of computers in close
proximity
 Office building, home, or school
 Wide area network (WAN)
 Spans a large geographic area
 State, province, or country
 Metropolitan Area Network (MAN)
 Large computer network
 Usually spanning a city
 Using Networks and Telecommunications for Business Advantages
 Voice over IP (VoIP)
 Uses technology to transmits voice calls over long-
distance telephone lines
 Networking businesses
 Virtual private network (VPN) is a way to use the public
telecommunication infrastructure to provide secure
access to an organization’s network
 Value-added network (VAN) is a private network,
provided by a third party

2.  Increasing the speed of business
 Bandwidth is the difference between highest and lowest
frequencies
 Securing business networks
 Proper identification of users
 Control/Secure access
 Protection of data integrity
 Mobile Technology
 Wireless local area network (wLan)
 Uses radio waves rather than wires to transmit information
across a local area network
 Cellular phones and pagers
 Provide connectivity for portable and mobile applications, both
personal and business
 Cordless computer peripherals
 Connect wirelessly to a computer, such as a cordless mouse,
keyboard, or printer
 Satellite television
 Allows viewers in almost any location to select from hundreds
of channels
 WiMax wireless broadband
 Enables wireless networks to extend as far as 30 miles and
transfer information, voice, and video at faster speeds than
cable.

3.  Security sensor
 Alerts customers to break-ins and errant pop files
 Using Satellite Technologies in business
 Location-based services (LBS)
 Wireless mobile content services that provide location
specific information
 Privacy concerns
o Target marketing
o Embarrassment
o Harassment
o Service denial
o Legal restrictions
 Geographic Information System (GIS)
 Designed to work with information that can be shown
on a map
 Uses
o Finding what is nearby
o Routing information
o Information alerts
o Mapping densities
o Mapping quantities
 Global Positioning System (GPS)

4.  A constellation of 24 well space satellites that orbit the
earth
 Makes it possible for people to pinpoint their geographic
location with a ground receiver