Digital Photography: A to Z (Part 20)

 U 

UART:
Universal Asynchronous Receiver Transmitter. Set of chips in a computer regulating data flow over the serial interface.

Unsharp Masking:
Often abbreviated USM. Describes an image focusing process. The quality of the result depends on the characteristics of the algorithm used.

Digital Photography: A to Z (Part 19)

 T 

True Color:
Describes the colour output on a monitor or printer. Requires at least 16 million colour nuances.

Tele Converter:

Lens attachment that extends the focal length.

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Facebook CEO Mark Zuckerberg returns to Harvard.

Digital Photography: A to Z (Part 18)

 S 

Scanner:
The process of reading information (picture, graphics and text) through the use of a scanner.

Scanner:
A device used to digitized printed information (picture, graphics and text).

Digital Photography: A to Z (Part 17)

 R 

RAM:
Random Access Memory. The user can read and write data from/ onto this type of memory. RAM is used to temporarily store both data and programs. As opposed to ROM, all memory stored in RAM is lost when the power is turned off and is therefore called volatile memory.


Raster Length:
The number of raster points that can be displayed per inch. Given in lines per centimeter (L/cm) or per inch (lpi). A 60 raster is 60 L/ cm or 152 lpi.

Real Image Viewfinder:
Optical real image viewfinder.

Digital Photography: A to Z (Part 16)

 Q 

Quark XPress:
Popular Desktop Publishing Software developed by Quark Inc.

Quick shooting mode:

This function allows a number of photos to be to be taken in quick succession (usually with 1 to 2 seconds between each shot). With a large memory (D RAM) it is even possible to take high resolution shots with only a 10th of second between them. The images are then later saved onto the cards.

Quick Time:
Developed by Apple Inc. This is a standard videos and streaming media. More than half of all internet videos are in quick time format.

Grab also »
A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, R, S, T, U, V, W-Z

Digital Photography: A to Z (Part 15)

 P

PageMaker:
PageMaker was one of the first desktop publishing programs, introduced in  1985 by Aldus Corporation, initially for the new-Apple Macintosh and in 1987 for PCs running Windows 1.0.
PageMaker relies on Adobe Systems PostScript page description language and in 1994 Adobe Systems acquires Aldus and pageMaker.


PAL:
Phase Alternating Line. A color television standard developed in Germany in 1967 and used in many European and non-European countries. The image size is 786 x 576 pixels with a frequency of 50Hz interlaced (2x 25 half images are generated each second).

Pantone:
A color scale consisting of about 3000 gradations in tone that is used in editing digital images.

Digital Photography: A to Z (Part 14)

 O

Offline:
Describes the state when no data connection exists.





OLE:
Object Linking and Embedding is a technology developed by Microsoft that allows objects (graphics, tables etc) to be embedded into different files/documents in order to create, for example, a report.

Digital Photography: A to Z (Part 13)

 N

Negative:
Flim coated with a light sensitive emulsion that after exposure and processing produces the images taken with the camera in complimentary values.

Network:
The connection of several individual computers to aid data exchange and communication.

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Digital Photography: A to Z (Part 12)

 M

Mac:
Abbreviated name of the Apple Macintosh computer. This computer is often used for graphic application and image processing.

Mac OS:
The Apple Macintosh computer's operating system.

Digital Photography: A to Z (Part 11)

 L

Laser printer:

A printer that uses a laser beam to project characters and graphics onto a drum, which then electrographically transfers the image onto paper. Laser printers are known for their high quality reproduction and printing speed.

Digital Photography: A to Z (Part 10)

 J

Jaggies:
Slang term for the stair-stepped appearance of a curved or angled line in digital image. The smaller the pixels, and the greater their number, the less apparent the "jaggies". Also known as pixelisation.

Java:
A programing language developed by SUN Microsystem. It is a powerful and much more complex programing language- in the same category as C and C++.

Digital Photography: A to Z (Part 09)

 I

IC Card:
A smart card, chip card and integrated circuit card (ICC), is an pocket-sized card with embedded integrated circuits. It contains volatile memory and microprocessor components. The card is made of plastic, generally polyvinyl chloride. It may also provide strong security authentication for single sign-on (SSO) with large organizations.

iD Photo MO Disk:
The smallest rewritable optical storage medium for digital cameras. A joint development from Olympus, Sanyo and Hitachi Maxell. It features an amazing capacity of 730 MB. This means about 2000 photos can be taken before the media needs to be changed.

Illustrator:
Popular vector graphics program from Adobe.

Digital Photography: A to Z (Part 08)

 H

Hand-held exposure meter:
External exposure meter (exposure meter, reflected light meter)

Hard disk drive (HDD):
Device for the permanent storage of programs and information that remains after a computer has been turned off.

Digital Photography: A to Z (Part 07)

 G

GB:
Gigabyte. 1 GB=1024 MB

GIF:
The Graphic Interchange Format is a bitmap image format that was introduced by CompuServe in 1987. The format supports up to 8 bits per pixel thus allowing a single image to reference a palette of up to 256 distinct colors. The colors are chosen from the 24-bit RGB color space. It also supports animation and allows a separate palette of 256 colors for each frame.

Digital Photography: A to Z (Part 06)

 F

FAQ:
Frequently Asked Question.

FDD:
Flexible or floppy Disc Drive. A storage medium with a capacity of 1.44 MB.

Digital Photography: A to Z (Part 05)

 E

Email:

A world-wide electronic mail system. Digitized data can be sent almost immediately throughout the world via telephone lines using only a PC. Every email user has his or her own internationally distinct address where he or she can be reached electronically. Files, such as digital pictures, can be sent with any email message.

EPS:

Encapsulated PostScript. A computer file format based on the PostScript standard. It is supported by most graphic design and page layout programs. In addition to the PostScript code, the EPS file also contains a low resolution PICT.

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