Internet Safety and Security
Terminology Explained
  More Information To follow
 

Anti Virus
A program to prevent and remove Viruses
Attachment
This is a file sent with an email, it can be "attached" to the email. The file can be a document ie Word, Excel, Access or a Picture. It could also be a program. (Any of these files can contain viruses and infect your computer they can be passed on from one computer to another via emails or downloaded from websites.)
Bandwidth
is the measurement in bits per second of how much data can travel over a network in a given period of time. A higher bandwidth connection to the Internet means the capacity to carry more data at once, much like a thicker pipe means you can carry more water.
BBS
Acronym for Bulletin Board System, which is a system that lets people read each other's messages and post new ones.
Bookmark
In software such as Web browsers, a bookmark points to a person's list of favourite sites. Bookmarks make it simple to save the Web addresses (URLs) of several sites and then return to those sites later without entering or even remembering the complete address. Some Web browsers call this feature "favourites."
Broadband
Is a special device which is purchased in addition to your computer, It is 10x or 20x faster than modems and do tie up the phone line. You can have 256k, 512k, 1Mb or higher, connections.
browser
A browser
is an application used to explore information on the Internet. The term "browser" usually refers to a program for accessing the World Wide Web, such as Netscape, Internet Explorer or the AOL Internet browser.
Cache
When you download a Web page, the data is cached, meaning it is stored temporarily on your computer. The next time you want that page, instead of requesting the file from the Web server, your Web browser just accesses it from the cache. That way, the page loads quickly. A cache hit (accessing data from a cache) takes much less time than retrieving information from the main memory; the cache has high-speed memory chips. The cache may also be used as a temporary storage area for data that will be written to disk when the computer is idle . A temporary storage area for frequently-accessed or recently-accessed data. Having certain data stored in cache speeds up the operation of the computer. There are two kinds of cache: internal (or memory cache) and external (or disk cache). Internal cache is built into the CPU, and external cache is on the motherboard. When an item is called for, the computer first checks the internal cache, then the external cache, and finally the slower, main storage.
Chat Room, Forums, Newgroups and Bulletin Boards
These are websites that allow people to communicate with others, from any location around the world, it can be one to one or one to many, usually strangers, anyone can log into a chat room. Some chat rooms are supervised/moderated. People chat by typing their message for all to see, and others may reply instantly.
Computer virus
A computer program created specifically to infiltrate computers and networks and alter the operation of the system. The mischief caused can be very minor: it may cause a funny image or cryptic message to be displayed on your screen, or it can do some serious damage by modifying or even destroying files.
Cookie
A cookie is a set of data that a Web site server gives to a browser the first time the user visits the site, it is updated with each return visit. The remote server saves the information the cookie contains about the user and the user's browser does the same, as a text file stored in the Netscape or Explorer system folder. Not all browsers support cookies. Cookies store information such as user name and password and what parts of the site were visited; this information can be updated with each visit. The browser only shares each cookie with the server that originated it; other servers can only read their own cookies. Netscape can be set up to alert the user when a cookie is being sent so the user can accept it or not, by means of the Network Preferences window. You can delete the cookies using Internet Explorer/tools/options.
There are also downloadable applications that eat cookies such as Cookie Killers, Cookie Monster (Mac), and Kill Cookie Batch File (PC).
Cyberspace
Cyberspace is the "place" you go to when you're online. It's the imaginary space where you browse Web sites, send e-mail and participate in chat rooms. The word was coined by William Gibson in his science fiction novel Neuromancer. .
Domain name
Domain name is part of the Uniform Resource Locator(URL) that tells a Domain Name System (DNS) server where to forward a request for a Web page. Domain name consists of a suffix that indicates top level domain (TLD) such as net, com,org, ca, jp, etc, and a name defines the entity such as "whatismyipaddress" which is together with the top level forms the second level domain name. A third level can be defined to identify a particular host server such as "www" at the Internet address (e.g. "www.whatismyipaddress.net"). download
The method by which people access or "pull down" software or other files to their own computers from a remote computer, usually via a modem.
Download
Any data and programs can be "downloaded" from a website, for a small fee or free of charge, by clicking on a hyperlink and saving the information to your computer. (Any of these files can contain viruses, and infect your computer and be passed from computer to computer).
Emoticon
A sequence of keyboard characters used to punctuate a written message by expressing the writer's emotional state. For example:
a smile :-) sadness or consternation :-( a wink ;-)
Encryption
A way of coding the information in a file or e-mail message so that if it is intercepted by a third party as it travels over a network it cannot be understood. Only the person or persons that have the right type of decoding software can unscramble the message.
EMAIL
You can send messages to other people electronically any where in the world, messages can be received in seconds. (Quicker than the Post!) You can attach files, such as pictures or documents. For this you need to register with an ISP, and have a Modem or Broadband connection, for Email or Internet Access.
FAQ
An acronym for Frequently Asked Questions. FAQs are online documents that list and answer the most common questions on a particular subject.
File compression
A way of reducing the size of a file, or files, so that they don't take up a lot of space on a server or hard drive and can travel faster over a network. File compression is accomplished with software that uses mathematical equations (algorithms) to condense repeated data into smaller codes. You need a software program to decompress the data and to restore it to its original form.
FTP
FTP is a file transfer Protocol, is just a means by which a file is transferred over a given form of communication. You might FTP a file from Microsoft to your PC. Just think of it as downloading.
There are lots of great tools to make your FTP chores a little easier. Before we get into those, you have to know that you don't need any of them! Of course, performing the FTP is a little more difficult as it requires manual commands.
The DOS (Disk Operating System) comes packaged with FTP. There are also many programs available free for uploading and downloading files. ie CuteFTP or WS FTP.
Forums
These are websites similar to newsgroups, which are created by other people usually with a topic of interest. You can post messages for others to see and get to know other people who use the forum. This can give a false sense of security as people become friends, and swap email addresses and information about each other. Most forums self moderated (by the webmaster), or enlist other forum members to help moderate the site.
GIF
Acronym for Graphics Interchange Format, a special file compression format for image files. Because they are compressed, GIF files travel more quickly over the Internet. GIF files are the most commonly used graphics format on the World Wide Web.
Gopher
Gopher is a text-based Internet interface that use simple multiple-choice menus. Gopher is an excellent way to browse for information, and it includes its own search tool, called Veronica. Though a valuable tool, Gopher's popularity has subsided since the advent of the World Wide Web.
Hackers
These are unscrupulous people who find a way to get access to your computer and look at, add, change or damage data on your computer for unlawful purposes.
Home page
The term home page has two different meanings. The first meaning refers to the main page of a Web site. It often serves as a table of contents for the Web site, offering direct links to the different parts of the site. The second meaning refers to the initial page automatically displayed after someone launches their Web browser. This page is also called the "start page."
HTML
Acronym for HyperText Markup Language. HTML is the computer language used to create hypertext documents, the pages that make up the World Wide Web.
Hypertext
A typical Web page contains both text and graphic elements. When a word or phrase is underlined, it serves as a link to another page. Clicking on the link allows you to "jump" to another section of the same document or to another document on the World Wide Web.
HTTP
Acronym for HyperText Transfer Protocol. HTTP is the set of standards used by computers to communicate and share files with each other.
Instant Messenger
AOL, Yahoo, MSN are popular instant messengers, to use the messenger you need an email address to login. This works in a similar fashion to a chat room, by typing in messages and receiving an instant reply if the other person is online. To enter into a conversation with another you first need to allow their email address in your address list. You can also block addresses if you do not wish to allow this person in your address list.
Internet
The Internet is a worldwide network of thousands of smaller computer networks and millions of commercial, educational, government and personal computers. The world's largest computer network, the Internet is a cooperative initiative among the participating institutions and individuals. The Internet is not owned or operated by any single organization.
IP Address
An Internet address or IP address is a unique computer location on the Internet expressed as a 32-bit numeric address usually written as four numbers separated by periods. IP address consists of the Network Part (Network ID) for each network to know its own address on the Internet and the Local or Host Part (Host ID) for specific machine or host to know its address in a network. A newer version of IP addressing (IP version 6, consisting of a 128-bit numerical sequence) is currently being developed. Synonyms: Internet address, IP number.
ISP
The ISP is a company that provides your Internet service (your connection) to the Internet. Popular ISPs include AOL. Freeserve, WHSmiths, Virgin, NTL, Telewest, Tiscali, and many more. They all provide different services and tariffs, much like a phone company. You can either connect via a modem service which will give you a modest 56k connection, which these days is fairly slow for loading sites, and downloads. Broadband is a much faster connection and provides varying speeds available, ie 256k, 512k, 1Mb, 2Mb. The higher the number the faster the speed of your connection, the quicker the ages load.
JPEG
Acronym for Joint Photographic Experts Group. JPEG is an industry committee that developed a compression standard for still images. JPEG refers to the graphics file format that uses this compression standard. You will find JPEG files on the World Wide Web with the file extension .jpg or .jpeg.
Link
A link is a word, phrase, or picture (usually underlined or outlined in another colour) which includes a URL for another Web page. Clicking on the link will connect you to a new Web page.
Listserv
A listserv is like a newsgroup or forum open to participants on the listerv's mailing list. When e-mail is posted to a listserv, it is automatically broadcast to everyone on that list.
Login
Login refers to the account name used to access a Web site or computer system. Also called User ID, User Name, or Account Name.
Modems (Dailers)
Is a device in your computer (or external) which is connected via a telephone line. Modems are slow loading the websites as they are limited to 56k, bandwidth and tie up the phone line whilst you are surfing. You can also read information offline (when not connected) and compose emails offline, then connect to send.
Megabyte
A computer that has one megabyte of memory can hold about a million bytes or characters of information. A gigabyte refers to one billion characters and a kilobyte, one thousand.
Netiquette
A term for online etiquette. Refers to an informal code of conduct that governs what is generally considered to be the acceptable way for people to interact with one another online.
Newsgroup
A newsgroup is a forum for online discussion. A newsgroup's name denotes the appropriate topic of conversation in that newsgroup. There are thousands of newsgroups covering a wide range of subjects. You must subscribe to a newsgroup in order to participate in it or to track the discussion on an on-going basis. Unlike a magazine or newspaper, subscribing to a newsgroup does not cost anything.
Phishing
Spoof emails, and Spoof websites, designed to fool you into passing on your banking and personal details for unlawful purposes.
Popups
Are little windows that open when you log into a website or Internet Explorer, they are generally advertising and can contain pornographic pictures.
Scanner
A device used to digitise images for output to a computer. Optical Character Recognition (OCR) software can be used to translate images into text files.
Search engine
A type of software that creates indexes of databases or Internet sites based on the titles of files, keywords or the full text of files. The search engine allows you to type what you're looking for into a blank field. It then gives you a list of the results of the search.
Server
A computer that handles requests for data, electronic mail, file transfers and other network services from other computers (referred to as "clients").
Shareware
Software that is freely distributed for a small fee paid on an "honour system." You are not required to pay the fee to try the program, but if you like the software enough to use it, you are expected to send the fee directly to the creator.
Signature file
Text automatically included at the bottom of an e-mail message or newsgroup posting to personalize it. This can be anything from a clever quote to some additional information about the sender, like their title, company name and address. Netiquette suggests that signatures be four lines or fewer.
SPAM
Originally just a canned sandwich filler product, now this term is also used to refer to the practice of blindly posting commercial messages or advertisements to a large number of typically uninterested individuals or groups.
Spyware and Malware
Spyware/Malware are rogue programs, tracking software usually downloaded as cookies or trojans on your computer, they can track your surfing habits, find out your personal details, and can leave your computer vulnerable to hackers, allowing others to use your computer.
SSL - Secure Socket Layer
Encryption method for transferring data between a client and server.
URL
Is the address of the website ie www.bbc.co.uk. Normally consists of WWW (world wide web), Plus the company name, and the extension to the company name .co.uk. This is a UK based URL address, there are a many others, used for addresses, ie .com, .org, .edu, .gov, or .tv, plus many other international extensions. Some addresses do not use the WWW in front of the address.
Trojans
A program designed by rogue programmers to invade your computer, causing damage, tracking your surfing habits, downloading dialers and leaving your computer vulnerable to hackers.
Temporary Internet files
Are files stored on your computer which contain the websites page information/images, this makes it quicker to download the website next time you visit. These are stored everytime you visit a website and can take up space on your pc. You can delete these files using Internet Explorer/Tools/Options
Virus
A program written by rogue programmers designed to damage data and programs on your computer, and to infect others, by passing on from computer to computer.
Web site
Usually indicates a collection of Web "pages." The "home page" is typically the first or main page of a site
Windows Critical Updates
Microsoft regularly update their programs, fixing problems and incorporating new features, tightening the security to fight against rogue programmers. These updates and critical updates are available free of charge from their website, http://www.microsoft.com , simply click to scan for updates and it will give you a list of updates for your computer. Simply select update and it will update your Windows programs. You will need to do the Critical updates first, and restart your PC, then go back to do any other chosen updates.

  SOME FINAL THOUGHTS
  We hope that you have found this article to be useful. The Internet is a great resource for information and can be a load of fun. But there are some dangers. By following the advice in this article you and your family should be able to use the Internet in a safe and secure way.

If you would like more detailed information we would like to suggest the following websites:

http://www.parentsonline.gov.uk

http://www.getnetwise.org

http://www.thinkuknow.co.uk

http://www.homeoffice.gov.uk/

http://ww/
w.childnet-int.org/

http://www.kidsmart.org.uk/

http://www.chatdanger.com/

http://www.ispa.org.uk/

Hall Mead School - ICT Code of Conduct

  Information and advice provided by
  Michael Chandler has worked in IT since 1980. He has a M Sc in Information Technology from the University of Houston, Texas.

If you have a problem with your computer and need help, Michael can be reached at 07885 903771 or by email at mt.chandler@clara.co.uk

Linda Zalicks has worked in IT since 1985, She is a qualified Microsoft Certified Professional in Information Technology, and has worked for the BBC in IT support for 13 years. She is currently Webmaster for Hall Mead School and provides IT (ECDL) training for Adults.