Glossary 149Minimum Distance — The closest position that a projector can focus an imageonto a screen.NTSC — National Television Standards Committee. North American standard forvideo and broadcasting, with a video format of 525 lines at 30 frames per second.PAL — Phase Alternating Line. A European broadcast standard for video andbroadcasting, with a video format of 625 lines at 25 frames per second.Reverse Image — Feature that allows you to flip the image horizontally. Whenused in a normal forward projection environment text, graphics, etc. arebackwards. Reverse image is used for rear projection.RGB — Red, Green, Blue — typically used to describe a monitor that requiresseparate signals for each of the three colors.S-Video — A video transmission standard that uses a 4-pin mini-DIN connectorto send video information on two signal wires called luminance (brightness, Y) andchrominance (color, C). S-Video is also referred to as Y/C.SECAM — A French and international broadcast standard for video andbroadcasting, closely related to PAL but with a different method of sending colorinformation.SSID — Service Set Identifiers — A name used to identify the particular wirelessLAN to which a user wants to connect.SVGA — Super Video Graphics Array — 800 x 600 pixels count.SXGA — Super Extended Graphics Array, — 1280 x 1024 pixels count.UXGA — Ultra Extended Graphics Array — 1600 x 1200 pixels count.VGA — Video Graphics Array — 640 x 480 pixels count.WEP — Wired Equivalent Privacy — This is a method for encryptingcommunication data. The encryption key is created and notified only to thecommunicating user, so the communication data cannot be decrypted by a thirdparty.XGA — Extended Video Graphics Array — 1024 x 768 pixels count.WXGA — Wide Extended Graphics Array — 1280 x 800 pixels count.
