My friend called up and informed me that his broadband is down and the modem is showing no light in ADSL. I told him to check his IP configuration and change the DNS server and if that does not help then he should contact the ISP. He called back and informed me that the ISP has told that there is some problem with the server and would be rectified soon. My 12 year old nephew who is a novice to the web asked me what exactly I was talking about. Not just him but many of us are really not aware about the common Internet terms that we use as a routine. So here’s a brief introduction to some of the terms that you must know and understand:-
The word Broadband in layman’s language basically refers to high speed Internet access but basically it is the ability of the network to send multiple streams (signals) be it voice, video or data down the same line.
ADSL (Asymmetric Digital Subscriber Line)
ADSL is data communications technology that enables faster data transmission over copper telephone lines than a conventional voice-band modem. It does this by utilizing frequencies that are not used by a voice telephone call.
A section of your computer’s memory / storage used to store information downloaded from the Web temporarily so that requests for the same information can be retrieved from the Cache and don’t need to be downloaded each time speeding up the surfing experience.
A cookie is a small piece of data sent from a website and stored in a user’s web browser. Common uses of a cookie are to remember preferences, online shopping cart contents and log-in information. However sometimes cookies are used to gather more than required information from the computer and are a real threat to the web surfer’s privacy.
Firewall is a combination of hardware and software designed to protect that controls the incoming and outgoing network traffic based on applied rule set. Firewall prevents unwarranted intrusion in your system by hackers at the same time restricting Internet access and blocking certain sites that the administrator deems unsuitable for work use.
FTP (File Transfer Protocol)
A network protocol through which files are exchanged between two or more computer over a network.
HTML (Hyper Text Markup Language)
A programming language that defines how web pages are formatted and displayed and the web browser interprets these codes and displays the document accordingly.
HTTP (Hyper Text Transfer Protocol)
An application protocol used to transfer information containing hyper Text, mainly web pages. The http:// in a URL tells the web browser to download and transmit the relevant Hyper Text document i.e. a webpage.
IP (Internet Protocol) Address
This is a unique number which identifies a computer on the Internet. Every computer that is connected to the Internet, permanently or temporarily, is assigned IP address which is a four set of number.
DNS (Domain Name Server) – A phonebook of the Internet that translates human-friendly computer hostnames into IP addresses and vice versa facilitating internet communication.
ISP (Internet Service Provider) : ISP refers to the company that provides you basic access to the Internet.
Modem (Modulator/Demodulator) : The device that allows your computer to communicate over existing phone lines.
World Wide Web (WWW) : The collection of web sites, pages, resources and users on the Internet that use are accessed via HTTP.
TCP/IP (Transfer Control Protocol / Internet Protocol)
This is the protocol used by networks to communicate with each other over the Internet. It is the basic language of the Internet. Basically it consists of a two-layer program. One to split data into smaller more manageable chunks or packets, and the second to address each packet so they all go to the right destination.
A host computer used to transfer (serve) files to you via a network or Internet connection.