Glossary
GLOSSARY
BFL
Back Focal Length
CCD
Constant Contrast Dimming
CEE7/7
European power plug to connect the power cord to the wall outlet.
DHCP
Dynamic host configuration protocol. DHCP is a communications protocol that lets network administrators manage centrally and
automate the assignment of IP addresses in an organization’s network. Using the Internet Protocol, each machine that can connect
to the Internet needs a unique IP address. When an organization sets up its computer users with a connection to the Internet,
an IP address must be assigned to each machine. Without DHCP, the IP address must be entered manually at each computer
and, if computers move to another location in another part of the network, a new IP address must be entered. DHCP lets a network
administrator supervise and distribute IP addresses from a central point and automatically sends a new IP address when a computer
is plugged into a different place in the network.
DNS server
Computers, Projectors, Touch panels connected to a network are referenced by their IP address. The only problem is that remem-
bering IP addresses is not easy. If you need to use hundreds of addresses then it will become impossible to remember them. This
is why domain names are created. Internet names (domain and host names) are just aliases to these IP addresses. When you use
an Internet address it is automatically translated to an IP address. In fact a program or device that translates those Internet names
to IP addresses is called a DNS Server.
ECR
Extended Contrast Ratio
Extended Contrast ratio allows to increase the contrast of the image while the light output decreases.
GLC
Gray Level Correction
GLD
Gray Level Definition
NEMA5
American power plug to connect the power cord to the wall outlet.
Smearing
Smearing is a ’trail’ effect produced by fast moving objects in a displayed image. Any fast moving object will look blurred or smeared
along the direction of relative motion.
R59770198 BARCO SIM 7D 13/02/2013
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