Matrix Orbital VK204-25 Legacy - Manual (Page 36)

8.2 Options
Table 24: Options Available on VK204-25
Extended Temperature E
Wide Voltage V
Wide Voltage with Efficient Switching Power Supply VPT
9 Appendix: Glossary
Table 25: Appendix: Glossary
ASCII American Standard Code for Information Interchange.
A 7 bit binary code representing the English alpha-
bet, decimal numbers and common punctuation marks.
Also includes control characters such as carriage re-
turn or end of text. An 8 bit superset of the standard
ASCII codes is often used today to include foreign
characters and other symbols. These supersets are of-
ten called extended ASCII character sets
Backlight A backlit display is illuminated from behind to provide
nighttime and improved daytime readability
Binary Number The (data and signaling) bit transmission rate of an
RS232 device
Bit A number written using binary notation which only
uses zeros and ones
Bitmap A representation, consisting of rows and columns of
dots, of a graphics image in computer memory. The
value of each dot (whether it is filled in or not) is stored
in one or more bits of data
Byte A grouping of eight binary bits
CCFL Cold Cathode Fluorescent Lamp. A high brightness
backlighting source consists of a fluorescent tube pow-
ered by a high voltage A.C. source
Configuration The way a system is set up, or the assortment of com-
ponents that make up the system. Configuration can
refer to either hardware or software, or the combina-
tion of both
Contrast The ratio of luminance between the light state of the
display to the dark state of the display
Matrix Orbital VK204-25 33