BROADBAND
- FAQ 
Question
What is broadband?
Answer
Broadband technology is the always-open gateway to a new world
of Internet-connected services delivered at lightning-fast
speeds to homes, offices and businesses. Think of a broadband
connection to the Internet as a fat pipeline running into and
out of a home or business. In most cases, that pipeline has
been laid by a cable, telephone or independent service
provider.
Question
How does broadband work?
Answer
Digital and fiber-optic technologies are key elements in
powering the broadband concept. Digital applications compress
vast amounts of voice, video and data information that are
broken down into what are called "bits." The
pipeline, in turn, can ferry a lot more bits -- they become
words, pictures and other components on our computer screens
-- than regular cable, telephone or wireless connections.
Think of the difference between broadband and dial-up service
-- often referred to as "narrowband" -- as the
difference between a fire hose and a garden hose.
Question
What kinds of broadband service are there?
Answer
-
Digital Subscriber Line (DSL), which
transforms copper telephone lines into powerful carriers
of digital data. DSL uses the same copper wires that carry
voice traffic to your telephone to carry high-speed data.
Your PC's connection to the DSL network is usually done
through a "router," which is placed next to your
computer.
-
Cable modems, which tap into the same
cable TV company lines that deliver TV pictures and sound
to your TV set. Modems usually are placed next to your
computer.
-
Wireless vehicles developed by
satellite-service providers -- usually direct broadcast
satellite (DBS) companies like DirecTv and EchoStar -- and
on-the-ground, antenna-to-antenna systems, commonly called
"fixed-wireless" systems.
Question
Why do I need broadband service?
Answer
Broadband's blazing speed eliminates the so-called "world
wide wait" that users encounter with dial-up services.
Cable modem, DSL and wireless connections to the Internet are
at least 10 times faster than a dial-up connection made
through a 56-kilobits-per-second or 28.8-kbps link.
That speedy connection can open up a new world of audio, video
and games, among other applications, that can be tedious going
using a slow dial-up connection. Web pages that take minutes
to summon up with a dial-up connection pop up instantly with a
cable modem, DSL or wireless broadband connection. A broadband
link also can make such work-oriented chores as accessing
databases less frustrating, because you can move from Web site
to Web site in a click of the PC's keyboard.
Question
Are there any other kinds of broadband service?
Answer
Telephone companies also offer ISDN and T-1 and T-3 services
that can carry voice, data and Internet-based transmissions.
These broadband connections are more popular among businesses
than households due to their relatively high cost and
technological complexity.
Question
Are there any other advantages to broadband?
Answer
A cable modem or DSL link to the Internet is always on;
there's no need to dial in to an Internet service provider
(ISP). Simply click on your browser and you're on the
Internet. No more waiting, no more busy signals. The fact that
the broadband connection is never turned off as long as your
PC is on lets you "snack" on information whenever
you like.
What's more, cable and DSL users can go online without tying
up their telephone lines, which means no more missed calls
while surfing the Web.
Question
How many broadband connections are there today in the U.S.?
How many will there be tomorrow?
Answer
The Yankee Group, a telecommunications research firm,
estimates there will be over five million broadband
connections by the end of 2000. Forward Concepts, another
research firm, estimates broadband connections could hit the
35-million mark by 2005 in the U.S.
Question
Why haven't I heard more about broadband?
Answer
Building the so-called "information superhighway" is
a mammoth undertaking that involves major industries and
thousands of companies. Cable and telephone companies have
been slow to upgrade their networks with fiber-optic and other
expensive technologies. Independent DSL enterprises have had
trouble winning access to the telephone companies' lines so
that they can deploy high-speed Internet-access service. And
wireless companies continue to deal with an array of
technological and marketing issues before they can win large
subscribership. But this is all changing.
Question
Who offers broadband service?
Answer
On the cable modem front, Excite@Home and Road Runner are the
most popular ISPs. They're marketed by such cable TV operators
as MediaOne, Time Warner Inc. and AT&T. DSL service is
sold by the major regional telephone companies like SBC
Communications, Ameritech, Bell Atlantic, BellSouth and U S
West. Independent players such as Rhythms NetConnections,
Covad Communications and NorthPoint also sell DSL service.
Question
Anyone else?
Answer
DirecTV, which offers satellite-signal TV service, has been
marketing its DirecPC broadband service for several years. It
can deliver fast download speeds of about 400 kbps. But
sending something like an e-mail or Web page over the network
will go slowly, because a dial-up telephone connection still
must be tapped. DirecTV and its prime competitor, EchoStar,
are working with America Online and Microsoft, respectively,
to try to clear out that bottleneck. Other satellite-based
services also are being launched by AstroLink, iSky Inc.,
Skybridge and Teledesic.
So-called "fixed wireless" services developed by
TeraBeam, WinStar, Teligent, Sprint and smaller telephone
companies, among others, deliver broadband capabilities over a
variety of ground-based, antenna-to-antenna systems, primarily
in urban markets.
Wireless technology's major plus is the fact that it can
deliver high-speed, broadband-based services over large
territories. But it's generally more expensive than DSL and
cable modem service.
Question
How much does a broadband connection cost?
Answer
For cable modem service, expect to pay up to $150 for
installation, and from $19.95 to $50 a month for service. For
DSL, installation costs run roughly the same. The monthly
charge for service varies depending on how fast your line is.
But expect to start at $19.95 a month and head toward $100,
depending on the carrier. Again, if you can get both cable
modem and DSL service in your neighborhood, it pays to compare
the prices. The same goes for several DSL carriers. Wireless
and satellite-delivered service can cost $100 and up a month,
as well as carry stiff installation fees.
Question
What's the difference between upstream and downstream speeds?
Answer
Information passes between your computer and the Internet in
two directions: upstream and downstream. Info that flows
upstream is sent by your computer to the Internet. An example:
using a search engine to find directions to a restaurant.
After the search engine finds what it's looking for, it sends
the results downstream to your computer. Generally, more
information is passed downstream. So, for the average user, a
fast downstream speed is more critical than a fast upstream
speed.
Question
What can broadband do besides give me fast downloads of Web
pages and files?
Answer
Broadband technology is fostering a new class of consumer- and
business-related services such as Internet Protocol-based
telephone and videoconferencing services; viewer-customized TV
feeds; e-mail with audio and video components; and
home-networking capabilities. You're also beginning to see
more sophisticated online games and distance-learning
applications.
Question
How long does it take to install a broadband connection in a
household or business?
Answer
It depends on your service provider. The multi-step process is
being streamlined every month, but it is still a complex
undertaking. Considering that DSL and cable modem
installations must be done by trained technicians, it can take
several days to a few weeks to schedule a visit.
Question
How secure is my computer using an always-on Internet
connection?
Answer
Good question, because your local broadband service provider
probably won't bring up security issues. Any connection to the
Internet ?especially an always-on connection like a DSL or
cable modem link ?carries the risk that a sophisticated
"hacker," or computer thief, could break into your
files. It's worth asking your broadband service provider
whether you should install a "firewall" ?software
that keeps out intruders ?to protect your computerized
information.
Question
What kinds of firewalls are on the market?
Answer
A number of affordable firewalls can protect your computer's
data. The easiest to-use and least-expensive solutions are
personal firewalls that you install on your computer. Among
the most popular are Norton Internet Security 2000 (www.symantec.com),
ZoneAlarm (www.zonelabs.com) and BlackICE Defender (blackICE.com).


BROADBAND
- FAQ |