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The Online World resources handbook

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Frequently used terms http://home.eunet.no/~presno/bok/v4.html<br />

comp.compression newsgroup.<br />

Default<br />

When a value, parameter, attribute, or option is assigned by a communications program,<br />

modem, or online system unless something else is specified, it is called the default.<br />

For example, communication programs often have prespecified values for baud<br />

rate, bit size and parity that are used unless alternative values are given. <strong>The</strong>se<br />

prespecified values are called the defaults.<br />

Some services give users a choice between two or more options. If a selection is not<br />

made by the user, then a selection is automatically assigned, by default.<br />

Dial up access<br />

An indirect connection to the Internet or an online service through a modem or a digital<br />

phone network adapter.<br />

Downloading<br />

<strong>The</strong> transfer of data from an online service and "down" to your computers' disk.<br />

DTR<br />

Data Terminal Ready is a circuit which, when ON, tells the modem that your computer<br />

is ready to communicate. Most modems are unable to tell your computer that a<br />

connection has been set up with a remote computer before this circuit has been switched<br />

off. If your computer turns this signal OFF, while it is in a dialog with a remote<br />

computer, the modem will normally disconnect.<br />

Duplex<br />

Describes how you see text entered by the keyboard. When the setting is HALF<br />

DUPLEX, all characters entered on your computer for transfer to an online service (or<br />

your modem) will be displayed. In addition, you will normally receive an echo from the<br />

online service (or modem). <strong>The</strong> result will often 'bbee lliikkee tthhiiss'.<br />

When using the setting FULL DUPLEX, typed characters will not be shown. What<br />

you see, are characters echoed back to you from the online service and/or your modem.<br />

ECHO<br />

(1) When data is being sent, the receiving device often resends the information back so<br />

WKH VHQGLQJ GHYLFH FDQ EH VXUH LW ZDV UHFHLYHG FRUUHFWO\<br />

(2) Term used on FidoNet for this network's system of exchanging conferences (parallel<br />

conferencing).<br />

Abbreviation for Electronic Mail.<br />

Email<br />

Ethernet<br />

A very common method of networking computers in a LAN (Local Area Network).<br />

File Name Extensions<br />

Consult the Whatis.com list of file name extensions RU VXIIL[HV WKDW LQGLFDWH WKH IRUPDW<br />

or usage of a file. <strong>The</strong>re's also a brief description of that format.<br />

6 of 17 23.11.2009 15:50

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