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Down: 1) Host An internet term. A 'host' is the name given to the Internet Service Provider (ISP) that is providing server space for a web site. For example you would say "Who is hosting your site". Web site A web site is a set of web pages that belong to each other as one group. Each web page is linked to the others in some way. The most common way is a menu system of some sort. Web sites are viewed using a browser. There is almost always a 'home page' which introduces the rest of the website - the homepage will contain hyperlinks to other pages within the site. A hyperlink that connects to a different website is called an 'external link' Web sites can be used to advertise or sell things. They are used to inform and communicate with other people. Web sites are usually presented in HTML (Hyper Text Markup Language) but are not always written or maintained that way - some web sites are designed for mobile phones that use a different markup language. Web sites that connect to a database have pages with a different extension to the usual .htm and .html, for example my_database_page.php. The extension tells the server that this particular page needs to be handled by the php service which may connect it to a database.4) This is a word of two parts. 'Giga' meaning a thousand million. 'flops' which is an abbreviation of 'floating point operations per second'. A floating point operation is a single maths calculation within a computer that uses decimal numbers. e.g. 1.2 x 1.3 is a floating point operation. Therefore, gigaflops means a thousand million floating point operations per second. To show how much progress has been made, in 1976 a Cray 1 supercomputer, then the most powerful computer in the world, cost £6 million and was capable of only 0.13 gigaflops. Just 35 years later, a standard Intel CPU chip, that you can find within a modern personal computer, can do 42 Gigaflops for about £150. Four hundred times quicker than an early supercomputer!5) A Bridge joins two networks together so as far as data packets are concerned it looks like one large network6) A television technology term. Most televisons still use a cathode ray tube to display its pictures. A cathode ray tube works by sweeping its beam across the screen from left to right (and slightly down). This sweep is called a 'raster' So an engineer might describe a television as having a 'raster scan of 25 cycle per second'. This would mean that the beam is sweeping across the screen 25 times a second. If it was slowed down enough, then you would see a zig-zag of light going down the screen8) Animation is where a series of still images are linked together as part of a timed sequence. This makes the image appear to move. This is the same technique used when making cartoons.11) A document file format developed by Adobe. Short for "Portable Document Format" which pretty much describes its purpose. It is a very popular file format for the following reasons > PDF documents are almost always Read-Only. This makes it a very convenient format to distribute documents without the worry of content being changed > A PDF prints out easily and accurately without messing about with formatting. > A free 'Reader' utility called 'Acrobat Reader' allows anyone to view the document, so no expensive software is needed just to view documents. > PDF is widely supported in the professional print industry so if you are an author of content, then buying the full authoring application is a sensible investment. > There are free 'Print Drivers' available for applications such as Word that allows you to create a PDF file simply by selecting it as one of your printers. It is not so good as the proper Adobe authoring software, but good enough for simple documents.12) Quite often software application allow choices to be made regarding data or set-up. But if the user does not want to make a choice then the system will choose to use the 'default'. For example, you may have access to a number of printers on the network but one of them will be set as the 'default'. So if you press 'print', the document will go to that printer14) CD-RW stands for CD-ReWritable Disk. This type of compact disk can have data saved on to it many times. The data can be erased and the disk re-written to again. However, CD-RWs do have a limited life span. They can be rewritten approximately a thousand times.15) A graph or map term Graphs usually have a set of symbols drawn on them to highlight a data series or some other feature. Maps also have symbols drawn on them to represent some particular feature. For example, on a graph one series may have 'square' points along the line whilst another line may be have hollow circles for each data point The point is that the reader must be able to understand what those symbols mean. And this is the purpose of a 'legend' in the graph or map. A legend shows the symbol in a separate area along with an expalantion of what it means Across: 2) A hyperlink is a piece of text, graphic or button on a web page. When the hyperlink is clicked, It will take you to another location on the same web page or to another web page either in the same website or to a page on3) A web design term. Most images appear on a page in order to convey a message or make an impact. But there is another use for pictures on a web page - namely as a navigation method. For example imagine that the front page of a web site might have an image of a shop store, with book section, DVD section and so on. You may be able to click on the 'DVD section' part of the picture to jump to the DVD section of the web site. This is what an Image Map does. The designer will make an invisible area on the image that becomes a hyperlink. You know this is happening because the mouse cursor changes to a small have to indicate a link.7) There are 6 major factors that affect the quality of information. These are Accuracy Relevance Age Completeness Presentation Level of detail Accuracy – Validation and verification can help to remove information outside set boundaries, unreasonable and not sensible information, but they cannot ensure that the information is accurate E.g. A person may be 18 not 81, this information will not be detected if wrong because it is within the set boundaries Relevance – It will increase the amount of data that is stored and can waste time searching for required information E.g. Irrelevant to have a school pupils parents birthday Age – Information can change over time, May be irrelevant or inaccurate if it is to old E.g. May have your address but could be to old Completeness – Having only a part of information can also be worthless E.g. Telephone number without the area code Presentation – Information loses value if it is not presented in a way that you can understand it or find what you want from it. Can be improved by sorting, by using graphs, bullets etc. Level of Detail – Too much or too little information can be unhelpful. Should have enough information to be able to make a decision9) A kilobyte is a measure of computer memory or storage. It is generally thought of as 1,000 bytes. However, to be completely correct, it is actually 1,024 bytes. Related words: Megabyte, Byte10) A generally derogatory term to describe someone who loves technology to excess, in particular knowing the fine detail which seems 'geeky' to other people. For example, knowing the operating frequencies of every Intel micro ever made would be considered 'geeky'. The description is also used to suggest that they have a limited social life because of their obsession with technology However, some people like to call themselves geeks and are proud of it! Very similar in meaning to the word 'nerd'.13) social networking site.16) In data processing terms an 'Editor' is an application that allows you to write computer code in the form of text. A good editor will also use colour to highlight keywords within that computer language. This is very handy for spotting typing mistakes. An editor may also help you lay out the code neatly at the press of a button. 'Notepad' is a very basic text editor as it has none of these facilities but in theory you could write code for a web page or a computer application with it. But normally you would purchase a dedicated editor for the job in hand. Note that a 'word-processor' such as Word is not an editor as it has many hidden codes to format the text and so on. An editor does not usually have any hidden code, just pure text.17) A derogatory term to describe someone who is obsessed about the the details of a topic that seems irrelevant or trivial to other people. For example someone who can quote the clock frequencies of every microprocessor ever made by Intel. That could be said to be 'nerdy'. The description is also used to suggest they have no social life either because of their obsession to detail. However, some people like to call themselves nerds and are proud of it! Very similar in meaning to the word 'geek' except nerds can be related to any topic rather than just technology.
 

 

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