Copy of `HP Computing Glossary`
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HP Computing Glossary
Category: Technical and IT > Computing Terminology
Date & country: 11/08/2008, USA
- Refers to the intensity of hues in an image. Photos in need of a saturation boost are often ones that were overexposed or shot under hazy conditions.
- The size of an image, used when defining relationships between images or to change the size of an image.
- The part of a camera that opens and closes to control how long the CCD or film is exposed to light. A shutter is a set of metallic, fabric, or plastic surfaces that block light from the film or image sensor in a camera. When the shutter is released, the surfaces open for a predefined time, admitting a measured amount of light. See also CCD, CMOS.
- The length of time the shutter remains open when the shutter release is activated. Shutter Speed time is measured in fractions of a second (e.g., 1/125th).
- The viewing of previously shot images on the camera's LCD display, computer screen, or television screen.
- A thin memory card onto which images from a digital camera can be stored. See also Camera Memory Card, Compact Flash.
SVGA (Super Visual Graphics Array )
- A SVGA Monitor can display up to 1280 x 1024 pixels using over 16 million different colors.
TFTs (Thin-Film Transistors)
- The most common type of active-matrix screen. See active-matrix liquid crystal display.
TIFF (Tagged Image File Format)
- A graphic file format that stores grayscale and color images.
USB (Universal Serial Bus)
- An input/output (I/O) bus capable of data transfer at 12 megabits (1.5 megabytes) per second (MBps) with up to 127 devices connected in a daisy chain. The USB specification was published in 1996 by a consortium of companies left by Intel Corporation, including Compaq, Digital Equipment Corporation, IBM, Microsoft(r), NEC Technologies, and Norther...
VGA (Video Graphics Array)
- A graphics display standard introduced in 1987 by IBM for PS/2 computers. The basic specification provides for 640 x 480 pixel resolution and 256 simultaneous colors. The standard has been expanded by graphics card manufacturers.
VRAM (Video RAM)
- (pronounced 'VEE-ram') Video random access memory. A special memory chip that is designed for video applications and that usually has a special port for video information. Other data travels through another port.
– A somewhat catch-all term meaning something that relates to an 802.11b or 802.11g wireless network. For example, a Wi-Fi card would be a PC card that acts as an antenna for your computer.
- To record data (which cannot be erased) to a CD-Recordable disc.
XGA (Extended Graphics Array
) - A high-resolution graphics standard introduced by IBM in 1990. XGA was designed to replace the older 8514/A video standard. It provides the same resolutions (640 by 480 or 1024 by 768 pixels), but supports more simultaneous colors (65 thousand compared to 8514/A's 256 colors). In addition, XGA allows monitors to be non-interlaced.