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Data and Telecommunications, terms, concepts and abbreviations.
(19 terms)
ATM
A protocol for asynchronous data communications that represents the evolution from x.25 and Frame Relay. It includes specific considerations for QoS and allows for different packet priority and size.
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Computer Hardware parts, abbreviations and concepts.
(6 terms)
SDRAM
A generic name for various kinds of dynamic random access memory: DRAM that are synchronized with the clock speed that the microprocessor is optimized for. This tends to increase the number of instructions that the processor can perform in a given time. The speed of SDRAM is rated in MHz rather than in nanoseconds (ns). This makes it easier to compare the bus speed and the RAM chip speed. You can convert the RAM clock speed to nanoseconds by dividing the chip speed into 1 billion ns (which is on...
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Graphic Design & prepress terms from desktop publishing to offset printing.
(14 terms)
JPEG
A compressed graphics format specifically designed for photographs. Itīs name an acronym that stands for Joint Photographic Experts Group. It works by changing the images data from colours to frequencies (that represent detail) using a FFT and then discarding some of the high detail data - the resulting image is slightly blurry but this is barely noticable by the human eye and represents a significant saving of space.
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Linux/Unix Terms and Commands.
(9 terms)
FTP
A protocol developed to enable the transfer of files across a network. It provides a reletively insecure username and password security but has been more recently enhanced to allow for SSL encryption to provide a secure password exchange.
To some extent the use of FTP has been superceeded by SFTP (a component of SSH) or the secure file transfer protocol. |
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Photography terms and concepts, including digital and traditional photographic techniques.
(11 terms)
Barrel-distortion
A lens Aberration or defect that causes straight lines to bow outward, away from the center of the image.
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Web design termonology, concepts, and abbreviations.
(46 terms)
web designer
Person responsible creating web sites - this usually includes all graphics, code, and functionality for the complete page - however sometimes it only refers to the graphic design of the site and not the code. In those cases a web programmer would also be involved.
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