Sunday, 21 July 2019, 06:04 PM

Site: Webmaster Technology Institute
Course: Webmaster Technology Institute (AWS)
Glossary: Global Technical Glossary

J

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J2ME (Java 2 Platform, Micro Edition or K Java) is a software and technology environment that has been specifically designed to enable the development of applications optimised for use on mobile and portable consumer devices, such as mobile phones and personal digital assistants (PDAs). J2ME is able to run on devices with RAM of only 128 kB, and this allows programmers to use the Java programming language (and related tools) to develop software for devices with limited memory. A wide range of applications and games are now available for use on mobile devices. J2ME was developed by Sun Microsystems
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Also known as: JPEG JPEG (Joint Photographic Experts Group) is an independant organisation formed in the mid eighties with the aim of creating true colour computer image standards. The initiative to develop a photographic image format was initially taken on by the ISO but other groups were merged (including the ITU-T) in order to take advantage of their experience. The standard most commonly referred to by the term JPEG is ISO/IEC IS 10918-1, which defines techniques for digitally coding photographic images. There is an extension of this standard called JFIF (JPEG File Interchange Format) which is the standard commonly used for almost all JPEG image files. JPEG can be used to store either truecolour (24-bit) or greyscale images. It uses a lossy compression algorithm called DCT (Discrete Cosine Transform) which is a lot more complex than normal bitmap encodings and so requires more computing power to encode or decode; the benefit is that good image quality can be acheived with a small file. DCT in JPEGs works best on photographic images; graphics that contain sharp contrasts such as straight edges don´┐Ż??t compress so well. Being a lossy compression method, it is possible to have manual control over the balanace between the quality and file size of JPEG-coded images. There has been demand for JPEG images that employ lossless compression as the basic standard does not define it very clearly or thoroughly. The JPEG-LS standard (ISO/IEC IS 14495-1) has been developed by the Joint Photographic Experts Group to help increase the quality and integration of lossless compression. The JPEG standard is heavily supported by the open source movement, and the good accessibility of JPEG coding and decoding packages has helped its rapid adoption into the mainstream in the mid nineties.
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A device connected to a computer to control actions on a screen, e.g. in computer games. Can have a similar function to a mouse.
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joint photographic experts group

K

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kilo byte OR kilobyte
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A keyframe is a frame in which you define a change in an animation or include frame actions to modify a document. Flash can tween, or fill in, the frames between keyframes to produce fluid animations.

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A list of words which are used to describe a document or other information so that it is easy to find with a search engine. For example, a report of the Trooping of the Colour may have the keywords royal, tradition, England, military and many others, associated with it.

L

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local area network
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A large (usually 28 or above) monitor or TV which allows many people to view a computer screen simultaneously. Alternatively, an ordinary projection screen can be used in conjunction with a video projector or computer display panel.
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Layers are like transparent sheets of acetate stacked on top of each other. Layers help you organize the artwork in your document. You can draw and edit objects on one layer without affecting objects on another layer. Where there is nothing on a layer, you can see through it to the layers below.

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Layering is the organization of programming into separate functional components that interact in some sequential and hierarchical way. (whatis.com)
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liquid crystal display
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The library is used to store and organize symbols that are created in flash. 
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When searching for information on a CD-ROM or the Internet it is possible to use keywords and to link those with logical operators such as and and or. They allow the search to be narrowed or widened. For example, "horse and plough" would only find information which contained both the words, whilst "horse or plough" would find any reference which contained either one or other word, including information on modern farm equipment and show-jumping.
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A computer programming language that can be used, for example, to create and manipulate shapes and patterns on screen or to control a screen or floor turtle.
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A loop  is a sequence of statements which is specified once but which may be carried out several times in succession. The code "inside" the loop is obeyed a specified number of times, or once for each of a collection of items, or until some condition is met.

M

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Once a website has been completed, constant maintenance is needed to keep things running - especially if the website has dynamic content or if users are able to interact with the website. Depending ont the size and scale of the website, maintenance can be a full time job.

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Manipulation happens when you change the colour , erase or cut out sections of any picture.

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mega byte OR megabyte
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A form of network communication that appears instantly on the monitor of the receiving system. Also called instant messaging.