The Online World resources handbook
The Online World resources handbook
The Online World resources handbook
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Getting started http://home.eunet.no/~presno/bok/v2.html<br />
radio and television reception.<br />
At this point, some discover that there is no place on the PC to attach the cable.<br />
Look for a serial port at the rear of your machine, labeled MODEM,<br />
COMMUNICATIONS, SERIAL, or with a phone symbol.<br />
If you find no suitable connector, you may have to install an asynchronous<br />
communication port in the box.<br />
Connecting your equipment to earth<br />
Secure your computer and modem against thunderstorms and other electrical problems.<br />
Securing the electric outlet in the wall is not enough. Problems can also enter through<br />
the telephone line.<br />
Thunderstorms have sent electrical pulses through the telephone line destroying<br />
four modems, three PC fax cards, one mother board, and at least one asynchronous<br />
communication port.<br />
To prevent this from happening to you, disconnect electrical and telephone cables<br />
from your equipment during thunderstorms.<br />
<strong>The</strong> communications program<br />
A powerful communications program is half the job. In my case it's the whole job. Most<br />
of my work is done automatically.<br />
<strong>The</strong> communications program will help you with the mechanical transportation of<br />
data in both directions. It lets you store incoming information for later use and reduces<br />
the risks of errors.<br />
<strong>The</strong>re are several basically different types of communications programs:<br />
1.<br />
2.<br />
3.<br />
Programs that connect you to an Internet access provider using the TCP/IP<br />
protocol. Example: Trumpet Winsock. In some cases, this is all they do. Sending<br />
email, looking up the <strong>World</strong> Wide Web, and transferring files are done using<br />
various client programs, like Netscape or Mosaic. Other programs, like SlipKnot,<br />
can connect and perform client functions.<br />
General purpose asynchronous communications programs, like Windows<br />
Terminal. <strong>The</strong>se let you call a large range of BBSes, commercial online services,<br />
and Internet hosts. Your dialog with the host can be manual, or governed by<br />
automatic scripts. Connecting to the Internet using TCP/IP is rarely included.<br />
Special purpose communications programs. <strong>The</strong>se are canned programs designed<br />
to do specific tasks on defined services. <strong>The</strong>y are rarely useful on other services,<br />
and for other applications.<br />
Some items to consider when shopping general purpose programs:<br />
Seriously consider buying automatic programs ('robots') for access to individual<br />
online services, even if that means having to use several programs for different<br />
applications. (Read Chapter 16 for more.)<br />
Menus and help texts are important for novices, and in environments with "less<br />
motivated personnel." Advanced users may find it boring.<br />
Ability to transfer data without errors. <strong>The</strong> program should have transfer protocols<br />
like XMODEM, Kermit, XMODEM/CRC, YMODEM and ZMODEM. <strong>The</strong><br />
XMODEM protocol is the most commonly used. You need these protocols if you<br />
want to transfer compiled computer programs (for example, .COM and .EXE<br />
files). <strong>The</strong>y are also used when transferring compressed files, graphics and music<br />
files. ZMODEM is considered the best protocol by many.<br />
Does it let you tailor it to your taste/needs? Some programs let you attach batches<br />
of commands to function keys and keystroke combinations. For example, by<br />
having your computer call your favorite online service by pressing the F1 key.<br />
Does it let you "scroll back" information having disappeared out of your screen?<br />
This may be useful when you want to respond while online to an electronic mail<br />
message. <strong>The</strong> sender's address and name, which you need to respond, have<br />
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