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144 Appendix C: Glossary
•DHCP
Dynamic Host Configuration Protocol. DHCP automatically assigns IP addresses
to clients who log onto a TCP/IP network. It eliminates the need to assign and
manage unique IP addresses for all of the machines on a network.
• Display memory
See frame buffer.
• Driver
A software program that services an operating system so that the operating system
can use a hardware device.
• End-of-active-video (EAV)
A signal sent along the video input port (VIP) bus, following the transmission of
the last bit of active video data. This signal indicates that there will be no more
active video signals transmitted for the current row.
See also Start-of active-video.
•Ethernet
The most common standard for the physical wiring and signalling on a LAN. It
can support data transfer at rates of 10 Mbits/sec. and 100 Mbits/sec. (Fast
Ethernet).
See also Local Area Network.
• Ethernet cable
A wire similar to a telephone cable that carries the signals between Ethernet
devices.
•Exposure time
Refers to the period during which the image sensor of a camera is exposed to light.
As the length of this period increases, so does the image brightness.
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