Upgrading & Fixing Laptops DUMmIES

Chapter 15 Modems: The Essential Translators In This Chapter
Ringing the bell, Twenty-First Century style
Differentiating amon ...

When Scotch-born Bostonian Alexander Graham Bell patented his telephone in 1876 — beating by just a few hours a similar claim by ...

Typing Your Modem..................................................................................... The original concept of a ...

telephone wires is 33,600 bps. (Fast modems are designed to automatically step downto the transmit and receive at the fastest ra ...

Rather, cable modems are designed to work with the “fat” pipe that delivers dozens or hundreds of television signals into your h ...

Amazingly, even with five traditional networks, six news channels, seven shopping stations, eight sports channels, and a couple ...

In general, I have found cable companies somewhat better at dealing with customer service than are phone companies, although Ma ...

range from 0–4 kHz; that narrow band works well over long distances. (The fact that POTS uses such a narrow band to carry voices ...

Cable and DSL modems are almost always part of a desktop installation and therefore are external devices. Whatever the design fo ...

by a radiator; made fragile by direct exposure to sunlight; or pinched and shorted out by the weight of desks, chairs, computers ...

openers, a neighbor’s wireless phone system, television sets, and nearby antennae for radio and television stations and governme ...

are easy to get at; it usually requires removal of a single small screw to open an access panel. If you are convinced the proble ...

And finally, don’t blame me... or the modem maker... if a supposed 56K device never quite reaches that speed. In a reasonably up ...

rented on a monthly basis.) If you suspect a hardware failure, you have every right to insist on a replacement. Soon after my fi ...

Chapter 16 Chapter 16: Breaking Out of the Box: PC Cards, USB, and FireWire ........................ USB, and FireWire In This C ...

Taking a Detour on a Two-Lane Road ........................................................ Within the electronic brain of your ...

The most rudimentary form of error checking adds a bit that declares that the sum of the bits in a particular word is either eve ...

and sometimes problematic connection to certain external hard drives (including a few using the parallel port), what was needed ...

Cards also come in several thicknesses, which are meaningful only because a slightly thicker card can hold more circuitry than a ...

USB uses a four-wire cable. Two wires handle data transmission, a third car- ries five volts of power to peripherals, and the fo ...