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.

Harvard's drop-out Mark Zuckerberg returns to Harvard

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.

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