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A Brief History of Tablet PCs
In the late 1980s, early pen computer systems generated a lot of
excitement and there was a time when it was thought they might
eventually replace conventional computers with keyboards. After
all, everyone knows how to use a pen and pens...
How to Never Pay a Hotel Phone Bill Again
Session Initiation Protocol (SIP) is a signaling protocol for establishing sessions in an IP network. But if you are like most of us, that means nothing to you. In layman's terms, SIP is a method by which various computers can talk to one another so...
Image conversion In Computers
Image Conversion In Computers JPEG, GIFF/JIFF, BMP, and TIFF are the most commonly used formats for storing still image files such as photographs, graphics, and drawings. JPEG stands for Joint Photographic Experts Group and is a standard for image...
Know Linux
Linux
Linux essentials:
It’s free for download but you have to pay a tiny bit to mail order it or buy it from a company. If you’re getting Linux for more than 2-3 PCs, you can also get training and support at a small...
Seecrets On Security: A Gentle Introduction On Cryptography Part 2
The recent explosive growth of PC's and Internet-based commerce has significantly increased the need for a wide variety of computer security mechanisms. This article, the second of a three-part series, lays the underlying foundation in plain...
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WiFi Range: What are the Limits?
Because of the fact that the WiFi networking standard uses very
high frequency (2.4 GHz) radio signals to transmit data, its
access range is usually quite limited. How limited, of course,
depends on the type of WiFi hardware being used.
A single family home or small office, for example, could easily
be covered by a single access point, but larger WiFi
locations, such as universities and corporate headquarters
often need a criss-cross of several different access points in
order to serve the entire area.
In theory, this method of adding multiple access points can
be
expanded limitlessly, to the point of creating citywide blanket
network. Such networks have been built, or are being built, in
several major American cities.
Creating wide-area wireless broadband networks can lead to
numerous advantages, including more mobility for users of WiFi
laptops, WiFi phones,
and WiFi
PDAs.
About the author:
Jeremy Maddock is the webmaster of TeleClick.ca, a trusted
source of telecommunications
news.
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