Wireless Networks by Elizabeth Morgan
The information age has been revolutionized not just by the power of computers to process data, but also by the power of communication amongst computers. This communication is responsible for the proliferation of computer networks. Sharing of information, sharing of resources (both software and... The mobile wireless systems support mobility of the equipment, enabling the user to access information from anywhere and at any time. ... For example, a local area network can be set up using wireless network to get rid of the hassles of laying cables.

Buying a Refurbished Laptop Computer by David Perlmutter
When considering buying a used or even a new laptop, the first thing you need to do is to determine your computing needs. * word processing * e-mail * browsing web pages * moving the laptop from home to work (weight) * gaming * on-line shopping * a database application * personal finance... There are basically two types of Internet access options: broadband (cable modem, DSL, satellite) and lowband (dial-up). ... If you don't like their attitude or they don't pick up the phone shop elsewhere.

Freedom of Speech on the Internet by Fred Hanster
Once upon a time, the world was made up of many, many communities that each had different opinions about free speech. Some allowed it, some prohibited it, and some operated in vast grey areas depending on what their particular dictionaries defined as freedom of speech. ... To think that there is a certain place that exists only in waves and on computers, through the phone and cable lines. ... Many phone companies operate overseas, and these companies can allow you to dial in to the internet, even if you can’t access it from your cable lines.

Build Your Own Computer by George W. Cannata
I’m eighty-one years old and I bought my first computer six years ago. When I bought it I hardly knew how to turn it on. I consider myself still a Newbie as I’ve barely scratched the surface of computer technology. I have successfully built about a dozen computers for family, friends and myself. ... Some have on board video and audio cards, others include modems and cable connections and some even sport keyboards, mice and speakers. ... All barebones kits come with an instruction manual and a phone number where you can get technical support.

Computer Safety for Kids by Rob Pirozzi
Start With the Basics - Protect Your PC Guarding Access to Your PC - Get a Firewall Beginning in the Zhou Dynasty, which was in the 11th century BC, construction was begun on what was to become the Great Wall of China. For 2,700 years, culminating in the mid-1600s, construction continued on... Literally, a cable from your cable or DSL modem gets connected to the hardware firewall. ... Many cable, DSL, and wireless routers/switches have firewalls built into them. ... When you connect your PC to the Internet either through cable, dial-up, or DSL, it is like China prior to the Great Wall.

Surge Protector: A Simple Mechanism Description by T.L. McMullen
A surge protector [AKA surge suppressor] is an electrical plug-in device designed to distribute safe electrical voltages to other electrical or electronic devices. Surge protectors resemble power strips in appearance; however, they are more sophisticated and deliver a constant, continuous power... This includes phone jacks, modems, cables, and any other external devices that will receive electrical current. ... Breakers are more economical than fuses as they do not have to be replaced. ... Protection Guarantee: Read the terms and conditions carefully!