Networks, Telecommunications, and Mobile
Technology

The Telecommunications Revolution






It began with the deregulation of AT&T in 1986

AT&T sold long distance



7 baby bells were formed
Since then, there has been much M & A activity
At this point, it was all POTS
Sprint was formed and sold long distance
MCI was formed and sold long distance
Natural gas pipeline companies and others selling bandwidth
Cable TV is not just for television anymore
VOIP (Vonage, Skype and others)

Trends and Focus Items




From proprietary networks to open systems

TCP/IP

XML
From analog signals to digital signals
From copper wires to fiber
Wireless, wireless, wireless

There are different wireless standards

Key Terms (1)

Telecommunication system enable the transmission of data over public or private networks

Network - a communications, data exchange, and resource-sharing system created by linking two or more computers and establishing standards, or protocols, so that they can work together

Key Terms (2)

Local area network (LAN) - is designed to connect a group of computers in close proximity to each other such as in an office building, a school, or a home.

Wide area network (WAN) - spans a large geographic area, such as a state, province, or country

Metropolitan area network (MAN) - a large computer network usually spanning a city

Key Terms (3)

Virtual private network (VPN) a way to use the public telecommunication infrastructure
(e.g., Internet) to provide secure access to an organization’s network

Valued-added network (VAN) - a private network, provided by a third party, for exchanging information through a high capacity connection

The Internet Revolution


The Internet changes everything
(Jeff Bezos – Amazon.com)
The Internet changes nothing (Len
Bosac - Cisco)

Metcalfe’s Law

The usefulness of a network equals the square of the number of users

2,300,000,000 (2,300,000,000 – 1)

Using the Net for a Competitive
Advantage



Voice over IP (VOIP)
Networking business
Increasing the speed of business

Optimizing business efficiency

Voice Over IP




Skype was one of the first
Vonage
AT&T and Cable providers
Cisco

Many companies use VOIP to reduce telephony charges

Voice Over IP (Illustration)

Increasing the Speed of Business

Bandwidth - is the difference between the highest and the lowest frequencies that can be transmitted on a single medium, and it is a measure of the medium's capacity

Types of Channels


Physical

Twisted pair 2MB to 100MB


Coax (Ethernet) 200MB to 500mb
Fiber 320+ GB
Wireless



Microwave 200MB
Satellite 200+MB
Bluetooth (1MB)

Network Security



Encryption
Dedicated (leased) lines
VPN

Mobility (Terms)

Mobile means the technology can travel with the user, but it is not necessarily in real-time

Hand-held devices that dock when the user returns to the office

Wireless gives users a live
(Internet) connection via satellite or radio transmitters

Mobility (Examples)



FedEx and UPS hand-held devices
(real-time wireless connections)
Budweiser (Hand-held devices with docking stations)
Season pass scanners

Cell Phones and PDAs




In 10 years, the PC might be obsolete
Blackberries have permeated business
The iPhone

A 25 billion dollar industry in apps
Bandwidth allows for the convergence of voice, video, and data

Cellular Service (Illustration)

The Cellular Revolution

Satellite Technologies





They use microwaves

Terrestrial microwaves

Geosynchronous satellites
Require line of sight
Good for remote locations
Slow upload speeds
Iridium http://www.iridium.com/

Global Positioning Systems


24 satellites transmit constantly
Your GPS receives these signals and triangulates your position

GPS Illustration

Geographical Information Systems
(Introduction)




GIS integrates:

Spatial database


Query engine
Rendering and mapping engine
Use with GPS
Demo at http://www.esri.com/software/arcgi s/arcinfo/about/demos.html

WiMAX



Wide area wi-fi
Sprint, AT&T, Google
WiMAX cells can cover up to 3000 square miles

RFID






This is a hot topic
My Heavenly ski pass has an RFID tag
Retailers used RFID in certain items for loss prevention
Use on shipping containers
Wal-Mart uses RFID on all palletized shipments
Wynn uses them in it’s casino chips

RFID (Privacy Concerns)

Imagine what I could learn with an
RFID tag embedded into your credit card

RFID (Types)


Active tags have their own power source
Passive tags get power from the
RFID reader

Mobile Workforce Trends








Social networking gets mobilized
Mobile TV
Multi-function devices become cheaper and more versatile
Location-based services
Mobile advertising
Wireless providers move into home entertainment
Wireless security moves to the forefront
Enterprise mobility